How To
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June 21, 2024
Carolyn Cumper
Cleaning and Maintaining Your Scrubs
Easily the most recognisable item of clothing in the industry, the humble medical scrub is exposed to all sorts of fluids and discharges on a nurse’s routine shift—which as everyone knows could see them end up getting rather dirty. Your scrubs may well be the first thing a patient sees, and it’s always great to make a good first impression. However, not only is it essential to keep your scrubs clean for a professional appearance, it is also vitally important that they are safe to use on your next shift. As many experienced nurses know, this means you will probably find yourself standing over the washing machine on a regular basis—and in case you were wondering how best to clean your scrubs, we’re here to help! As the healthcare industry has moved beyond standard green scrubs, nurses can now choose from a wide variety of colours when it comes to their most essential piece of workwear from black scrubs to blue or pink. Despite this leap forward in style, no one has yet created a set of scrubs that are totally safe from the traditional stains you will likely pick up on the job. That is why we wanted to share with you a few tips to keep your scrubs clean and safe. Before Washing Your Scrubs Scrubs are quite different to the rest of your laundry, so you’ll need to take special care in how you prepare them for cleaning. The most important information you need for scrub care is printed on the care label. Following the care instructions on this label is critical to maintaining your scrubs as well as possible for both functionality and longevity. When you wash medical uniforms, you have to sanitize them as well as clean them, so it’s not as simple as tossing everything into the wash and forgetting about it. Don’t forget to separate your colors before washing to avoid any dye bleeding. Wash like colors together, and always separate white scrubs from all others. It’s also highly recommended to launder your scrubs separately from your regular clothes. This helps prevent pathogens (and bodily fluids) from spreading to other garments. It also keeps them separate from materials like denim or other rough fabric types that can cause damage to your scrubs. Scrubs Wash Procedure Now that you’re ready to wash your scrubs, there are a few steps to keep in mind. As always, refer to the directions on the care tag if you have questions about your specific pair of scrubs. 1. The Pre-Treatment Soak The first step in the washing process is to pre-treat your scrubs by soaking them in a cold water solution containing half a cup of white vinegar. The scrubs should be turned inside out to protect the fabric, especially if they are cotton scrubs, as this will reduce the fading of their colour and increase the lifespan of your garments. Vinegar is a more eco-friendly way of treating the fabric compared to using traditional conditioners, and it also acts as a mild disinfectant at this stage that will help sanitize your scrubs. 2. The Washing Process Once your scrubs have been soaked, they are ready for the first washing machine cycle. Depending on how soiled the items are, or if there are particularly stubborn stains on the scrubs, you can use a colour safe stain remover before washing your scrubs for the first time. This first cycle should be done with cold water and regular laundry detergent. You can use a regular wash setting on your washer. Before the second washing cycle, check the scrubs for stains before adding a colour-safe bleach for a more thorough disinfecting action. Always add bleach separately to your washing machine’s dispenser, and never pour directly onto clothing. An alternative to regular bleach is pine oil disinfectant. Although these are not as strong as normal bleach, pine oil is an effective natural product for those who are more environmentally conscious. At this stage, the washing cycle should be done with warm water and include regular detergent again in addition to the bleach products and stain removers mentioned previously. Fabric softeners are not recommended, as these liquids can coat the fibers in your scrubs and affect the integrity of the material. 3. Drying After this final wash, your scrubs should now be ready for drying. In most cases, you can put them in a tumble dryer on the lowest heat setting for at least 30 minutes. High heat can cause shrinkage in some fabrics, so it’s important to use low heat to protect your items. Generally, the lowest setting on your dryer is safe. You can also air dry your scrubs on a line or flat on a drying rack. After drying, you may wish to take out your scrubs and iron them. This is purely cosmetic and will ensure you keep up that all-important professional appearance on the job. Note that all scrubs do not require ironing — many modern options are made from high-quality wrinkle-resistant materials that can save you this tedious step. Treating Stains on Medical Scrubs Due to the nature of your job, you’re likely to run into stains on your scrubs from various contaminants. These tips can help you remove stubborn stains from your dirty scrubs so that you don’t have to replace them as often. Blood Always soak blood stains in cold water. The water temperature is very important, as hot water can cause the proteins in the blood to set deeper into the fabric. Depending on the colour of your scrubs, you can dab hydrogen peroxide on the stain to break it up. This is only recommended on white or very light colors since peroxide can have a bleaching effect. Vomit, Urine or Faeces Unfortunately, vomit, urine, and faeces stains on your nursing scrubs are a regular hazard of the profession. Much like blood stains, these bodily fluids are protein-based, and should be soaked in cold water before washing. You can then use a heavy-duty detergent on a normal wash cycle while adding in half a cup of baking soda to take care of any odors. Ointments These oil-based stains require hot water to remove. Never rub the stain directly as this will only make it worse. Apply a bit of strong detergent, leave for 10 minutes, and then wash as normal. Iodine Medical professionals know that iodine creates some of the toughest stains in the business. Start by soaking the affected area in warm water with an enzyme-based pre-soak product or heavy-duty detergent. After 20 minutes, you can wash in the machine with an oxygen-based bleach to remove the last decolourisation. But please take care with the colour of your garment—get it wrong and you’ll be buying new scrubs! Why Scrub Care Is Important Your medical uniforms are critical to your job, so taking care of them properly isn’t optional. While there are excellent affordable options on the market, no one wants to have to unnecessarily replace scrubs as a result of poor care and maintenance. Healthcare workers have enough on their plates without worrying about constantly purchasing new workwear. How to Wash Scrubs: FAQ Let’s take a look at a few common questions we see from professionals who want to make sure they’re giving their scrubs the best possible care. How Often Should You Wash Your Scrubs? You may have some clothing items that you can rewear a few times between washes, but scrubs are not in that category. In fact, you should wash your scrubs after every single wear to remove contaminants, reduce the risk of spreading pathogens, and keep your scrubs in tip-top shape. Do Scrubs Shrink After Wash? Shrinkage is certainly possible any time you do laundry, especially when you wash scrubs made from cotton. But you can prevent this issue by using the lowest possible heat setting for your washer and dryer. Air drying scrubs is also a great way to avoid shrinkage. Why Do My Scrubs Smell After Washing? Sometimes, you may notice a sour or mildew-like smell from your scrubs even after they’ve been properly washed. When that happens, it’s usually an easy fix. First, make sure you’ve followed all the washing directions correctly. Second, never leave your scrubs in the washing machine for long periods after they’re done washing. You should always transfer them to the dryer or a drying rack or line right away to prevent mildew. Lastly, double check that you’re using the right amount of detergent for the size of the load you are washing. White vinegar can be used to neutralize odors, so if you run into this problem, you may need to wash your scrubs again, starting with the pre-soak step. Author: Carolyn Cumper's career spans from being a Patrol Officer in Rhodesia to a Paediatric Nurse in the UK, and later a Deputy Hospice Manager in Australia. Her diverse journey includes roles in law enforcement, healthcare, and business, culminating in her significant contributions to Medshop.
May 08, 2024
Steven Cumper
What is a Welch Allyn Ophthalmoscope and How to Use One
In order to carry out accurate and useful physical examinations, doctors need access to high quality tools and diagnostic equipment. Welch Allyn has been producing precise, reliable medical products for over 100 years. Founded in 1915, the manufacturer has grown to be one of the most trusted in the ophthalmology industry. Today, it supplies its high-quality tools, parts, and accessories to healthcare professionals and research centres around the world. Covering everything from traditional stethoscopes to iPhone-enabled ophthalmoscopes like this PanOptic+ enabled direct ophthalmoscope, Welch Allyn has a plethora of excellent options. Welch Allyn was founded when Dr. Francis Welch and William Noah Allyn developed the world's first handheld, direct illuminating ophthalmoscope. The tool has been a big part of the company’s identity since the beginning and continues to be one of its most recognisable products. It's also among its biggest sellers, with hospitals and healthcare facilities around the world placing their trust in the Welch Allyn name. To help you choose the correct ophthalmoscope for your needs, we take a closer look at the Welch Allyn ophthalmoscope range, how you use it, and what value it can add to your medical practice. What is a Welch Allyn Ophthalmoscope? A Welch Allyn ophthalmoscope is an ophthalmoscope produced by specialist medical manufacturer Welch Allyn. It’s one of the brand’s signature products and is sold in countries around the world—either as a standalone tool or part of a complete diagnostic set that may also include an otoscope and aneroid sphygmomanometer. An ophthalmoscope is an instrument used to examine the retina. If you’ve ever been for an eye test or visited an ophthalmologist, there’s a good chance they would have taken a look at your retina with an ophthalmoscope. There are two main types of ophthalmoscope: direct and indirect. Direct ophthalmoscopes are used to examine the centre of the retina whereas indirect ophthalmoscopes check the entire retina. Welch Allyn ophthalmoscopes use either halogen illuminators or SureColor LED technology. This ensures excellent illumination and allows medical professionals to see all elements of the retina. Welch Allyn ophthalmoscopes come in a range of different sizes and designs. The Welch Allyn pocketscope LED ophthalmoscope is light, compact and easy to transport. The Welch Allyn 3.5 V ophthalmoscope is an advanced instrument with a range of specialist features, while the Welch Allyn Pocket Junior ophthalmoscope is the brand’s most basic model. Other features include: Rechargeable lithium-ion power handles for increased running time when compared to standard devices A range of diopter configurations Digital connectivity through the Welch Allyn iExaminer platform Advanced coaxial ophthalmoscopes designed to enable easy entry to the eye for increased field of view, true tissue colour, and reduced glare. How Do Ophthalmoscopes Work? Ophthalmoscopes work by illuminating either a dilated or undilated eye with an LED or halogen light. This allows the medical professional to see the various elements that make up the back of the eye and check for a number of injuries and conditions. The part of the eye that ophthalmoscopes focus on is called the fundus. It’s made up of the retina, the optic disc and a collection of blood vessels. Ophthalmologists will check the fundus when screening for diseases and conditions that affect the eye. It’s also often included in standard eye examinations. An ophthalmoscope can be used to check for: Damage to the optic nerve Retinal detachment or tear Glaucoma Macular degenerations Melanoma Diabetic retinopathy Hypertension Infection Cataracts More advanced ophthalmoscopes offer doctors the ability to alter the aperture, lens and aperture/filter combinations to gain a larger view of the fundus. This can help specialists to make a more accurate diagnosis. Instrument Parts Ophthalmoscopes may look straightforward, but these instruments are very complex, with several important parts that make them work. Brow Rest: The brow rest is at the top of the instrument. It assists with proper placement by sitting against the brow of the user, reducing movement and making it easier to see through the ophthalmoscope. Lens Wheel: This adjustment tool allows the instrument to be focused. The number of lenses varies based on the type of ophthalmoscope you’re using, but the more lenses there are, the more focus options you’ll have. Viewing Port: This is the most important part of an ophthalmoscope – it’s the part you look through. Lens Viewing Window: The viewing window shows the user which lens is currently in use. Diopter Adjustment: This wheel helps with focus and helps adjust the strength of the lens. Head: The head of the ophthalmoscope is the name for the entire top portion, which is usually interchangeable. On/Off Switch: This button turns the device on or off and, in some models, controls the light. Batter Handle: The handle of the ophthalmoscope is used to hold the instrument, but it also contains the battery. Aperture Selection Wheel: This is an additional wheel on the device that controls aperture settings. Aperture Settings Aperture refers to a small opening that can control how much light is able to move through a lens. The aperture settings on an ophthalmoscope change the size of that opening, allowing more or less light through. Each aperture setting allows a different view: Small aperture is used to see the fundus while the pupil is undilated. This setting is used in a room with dim lighting. When the small aperture is used, the user has better visibility and depth perception. Issues like subtle microaneurysms, intraretinal microvascular abnormalities (IRMA), or areas of capillary nonperfusion are easier to see using a small aperture. Large aperture is used for dilated pupils, typically after mydriatic eyedrops have been given. The large aperture is more likely to be used during standard eye examinations. With this setting, the user gets plenty of light with which to look at the eyeball and its structures, providing a broad view. It is generally used when the room is dimly lit. Micro spot aperture is used when the pupil is undilated and constricted and when the room is well-lit. Micro spot aperture is perfect for when the light from the small aperture isn’t quite narrow and focused enough. This setting is used specifically for procedures and imaging procedures where there is a need for extreme precision. It offers a high resolution that is beneficial for retinal microsurgery, laser photocoagulation, and advanced imaging modalities like optical coherence tomography (OCT). Other aperture settings may be included with your ophthalmoscope depending on the model, including slit aperture, cobalt blue filters, and red-free filters. Dioptre Settings The dioptre settings on an ophthalmoscope are the device’s way of adjusting which lens is being used. The higher the number, the more convex the lens is. The lower the number, the more concave the lens. This is controlled with a focusing wheel. The patient’s focal point will determine the dioptre setting you should choose. Different conditions of the eyeball cause variations in the focal point, so your examination will be customized for each patient. For example, if your patient has hypermetropia, you will need to use a more convex lens for the examination. On the other hand, patients with myopia should be checked using a concave lens. Red Reflex The red reflex refers to the reddish-orange reflection of light from the back of the eye that can be seen during an ophthalmoscopy. Checking the red reflex is important as abnormalities in the reflex can point to a more serious issue. When using an ophthalmoscope for red reflex, it’s important the lights in the room are turned down low. Doctors should use a direct ophthalmoscope, and the lens power should be set to ‘0’. The doctor should sit around 50cm from the patient and place the ophthalmoscope close to the eye. The patient should then be asked to look straight into the ophthalmoscope. When the doctor looks through the ophthalmoscope into the eye, they should see the bright red reflex. The colour and brightness of the red reflex should be identical in both eyes. If it isn’t, this may indicate a problem, and further tests should be carried out. How to Use a Standard Ophthalmoscope from Welch Allyn Ophthalmoscopes should always be used by trained professionals. While the instruments are non-invasive, incorrect use can still potentially cause damage to the eye. When using an ophthalmoscope, it’s essential the patient is seated and still and the correct working distance maintained. Exam lights in the room need to be turned down low, or switched off completely, to optimise the view of the fundus. Welch Allyn ophthalmoscopes are very intuitive to use. Adjustments can be made to the lens, lighting and filter simply by moving switches and dials on the ophthalmoscope head. Most of these adjustments can be made without removing the ophthalmoscope from the eye, allowing doctors to fine tune their examination quickly and easily. Filters can be applied to the ophthalmoscope to check different parts of the eye. Red filters are used to look closely at the blood vessels and a red-free filter or cobalt blue filter can be used to check for corneal abrasions or ulcers with fluorescein dye. Slit apertures allow doctors to look at contour abnormalities of the cornea, lens or retina and grids can be used to approximate the relative distance between any retinal lesions found during the examination. Let’s look at a step-by-step guide for using the direct ophthalmoscope during an eye exam. We recommend this for medical students to supplement your favorite OSCE guide like Geeky Medics! First, make sure the patient is seated, and the ophthalmoscope can be comfortably held at eye level. Adjust the aperture settings on the instrument. Inform the patient that you will be using a bright light to look at their eye. Ask the patient to look straight ahead at the wall and focus their vision. When you’re examining the patient’s right eye, you should use your right hand to hold the ophthalmoscope and look through it with your right eye. To view their left eye, use your left hand to hold the instrument and look with your left eye. Use the hand that is not holding the device to hold the patient’s head still. It’s easiest to put your thumb on their eyebrow to help reduce movement. For placement, make sure to keep the ophthalmoscope approximately 15 centimetres from the patient’s eyeball. You’ll also want to hold it slightly to the right of their head. Now, look for the red reflex. Gradually get closer to the patient until the optic nerve comes into view. Take the necessary measurements, such as the cup-to-disc ratio. Slowly, move in every direction to examine the vasculature. Back up again so that you can locate the macula and fovea. Understanding the difference between direct ophthalmoscopy and indirect ophthalmoscopy is important during your exam. Direct ophthalmoscopy is used for stereoscopic vision. You’ll get an upright image with roughly 15 times magnification. Indirect ophthalmoscopy will give a wider view, and it’s done by mounting the ophthalmoscope to the examiner’s head, who will then put about an arm’s length distance between themselves and the patient. What is the Difference Between Retinoscope and Ophthalmoscope? A retinoscope is an instrument used to carry out retinoscopies. A retinoscopy is an exam that’s used to determine the refractive error of the eye. This allows medical professionals to diagnose patients that are farsighted, nearsighted or have astigmatism by examining the field of view. During the retinoscopy, light needs to be moved quickly from side to side. From the speed and direction that light moves across the eye, opticians and ophthalmologists can estimate the level of refractive error. Ophthalmoscopes are unable to provide this type of fast moving illumination. The existing Welch Allyn catalogue also includes a range of retinoscopes. These are often sold in conjunction with ophthalmoscopes. What is The Meaning of Fundoscopy? A fundoscopy is an exam that looks in detail at the fundus of the eye. It’s also known as a fundoscopic exam. An ophthalmoscope is generally used to carry out fundoscopies as they provide doctors with excellent visuals and a choice of useful tools and filters. Investing in a high quality Welch Allyn ophthalmoscope is an excellent way for ophthalmologists and other medical professionals to provide their patients with high quality care. Find out more, and learn about the Welch Allyn ophthalmoscopes we offer, by exploring the Medshop store today. Additionally, stay tuned to the Medshop blog for more information on healthcare equipment and supplies. Author: Steven John Cumper, B.App.SC. (Osteo.), M.Ost., is a businessman with a strong foundation in biomedical science and osteopathic medicine, who founded and led Medshop to international success, culminating in its acquisition by the Bunzl Group in September 2021, where he continues to serve as Managing Director (Medshop Group).
April 02, 2024
Steven Cumper
What is a Ventilator? How Does it Work and How to Use It
A ventilator is one of the most important pieces of equipment doctors have at their disposal. You've probably heard a lot about ventilators recently, as they have been used extensively during the coronavirus pandemic to treat patients with severe cases of COVID-19. In essence, they are used as life support to help patients in ICU who are struggling to breathe and those who have lost the ability to breathe, ventilators have saved hundreds of thousands of lives over the years. Understanding the basic principles of artificial ventilation, and learning what happens when someone is on a ventilator, will help to prepare you for going on a ventilator yourself. If you’re supporting a loved one who’s on ventilation or about to go on ventilation, getting an idea of what a ventilator is used for can be even more important. What is a Ventilator? A ventilator is a medical device designed to support or replace the breathing process when a patient is unable to breathe adequately on their own. Modern ventilators are precisely engineered pieces of medical equipment. Used in virtually every major hospital in the world, they can help patients through severe illness, surgery and paralysis. The primary function of a ventilator is to breathe - or support breathing – for patients who have lost the ability to respirate themselves. Ventilator support helps patients to breathe by gently forcing air into their lungs using a breathing tube inserted into the windpipe. The patient’s body then expels the air naturally. Some ventilators help patients to exhale as well as inhale like the Neopuff T-Piece Resuscitator RD900. Patients going into surgery under general anesthesia are often put on mechanical ventilators because surgical drugs and procedures can interfere with the breathing process. Being on a ventilator will ensure that the patient is able to get enough oxygen into their system throughout the operation. In intensive care units, ventilators are used to help patients who are struggling to breathe because of an illness or accident that causes acute respiratory distress syndrome (ARDS) or pneumothorax (collapsed lung). Taking over the breathing function for a patient can give their body time to rest and help them along the road to recovery. It can also give doctors time to try new medications, assess the condition of the patient and create effective treatment plans. How Does a Ventilator Work? A ventilator works by mechanically assisting or taking over the breathing process for a patient who is unable to breathe adequately on their own. For many years, ventilators and breathing machines used negative pressure to help a patient breathe. When the body is exposed to negative pressure, it causes the thorax to expand and air to be drawn into the lungs. The most famous example of negative pressure ventilation is probably the Iron Lung, a groundbreaking machine that saved the lives of thousands of children affected by polio. Today, most ventilators use positive pressure to help patients breathe. These ventilators push oxygen into a patient’s airway via a mask or endotracheal or tracheostomy tube. The positive pressure causes air to flow into the lungs until the ventilator breath ends. Often, oxygen is added to the air supply to ensure the patient’s levels of oxygen in the blood reach the correct level. With a Face Mask Using a face mask to aid oxygen intake is called non-invasive ventilation. In this approach, a well-fitted plastic face mask covers both the nose and mouth. A tube links the mask to the ventilator, delivering air into the lungs. This method is usually preferred for less severe respiratory issues. With a Breathing Tube For more severe cases, endotracheal and tracheostomy tubes are inserted while the patient is under general anaesthetic. Endotracheal tubes enter the patient’s airway via the mouth while tracheostomy tubes are inserted into the throat or trachea. Tracheostomy tubes are generally used when a patient requires long periods of ventilation. Both endotracheal and tracheostomy tubes are a type of invasive ventilation. In some cases, a non-invasive method of ventilation will be more appropriate. This delivers positive pressure to the airway via a mask. This type of ventilation increases gas exchange and reduces the amount of effort it takes for a patient to breathe. How is Ventilation Measured? In a clinical setting, minute ventilation (MV) is measured by multiplying the respiratory rate (RR) - the number of breaths delivered by the ventilator per minute - by the tidal volume (Vt) which refers to the amount of air delivered to the lungs with each breath. This calculation shows how regularly a patient is breathing and how much air they are able to inhale with each breath. Doctors will monitor both the respiratory rate and tidal volume of a patient's lungs while they are on a ventilator. They will also monitor the oxygen levels and carbon dioxide saturation of the patient’s blood in order to ensure they are breathing as they should. Types of Ventilators There are various types of ventilators available to treat patients with different needs. Medical professionals will assess a patient, their condition, prognosis and treatment plan before deciding which type of ventilation is most suitable. · Invasive Ventilation Invasive ventilation is when a tube is inserted into a patient’s mouth (endotracheal) or throat (tracheostomy) to help them breathe. This tube is attached to the ventilator which uses intermittent positive pressure to gently force air into the patient's lungs. · Non-invasive Ventilation - CPAP and BiPAP CPAP and BiPAP are both forms of non-invasive ventilation commonly used to treat sleep apnea and other respiratory conditions. CPAP ventilators use continuous positive pressure to help patients maintain their breathing. CPAP machines administer pressure via a mask rather than an endotracheal or tracheostomy tube. This makes them a non-invasive ventilation option. BiPAP machines offer patients pressure relief between breaths to help them exhale. · Nasal Ventilation Nasal ventilation is a type of non-invasive ventilation. It is often used to provide domiciliary nocturnal ventilatory support in patients with chest wall disorders, neuromuscular disease and chronic obstructive lung disease (COPD). Like a CPAP machine, nasal ventilation works by the delivery of positive pressure to the airway. Nasal ventilation generally uses intermittent pressure to allow the patient to exhale naturally. Ventilator FAQs What is the Difference Between a Medical Respirator and a Ventilator? A respirator is a masklike device, usually made of gauze, worn over the nose and mouth to prevent the inhalation of noxious substances. Health professionals wear respirator face masks to filter out virus particles so they aren’t exposed to infection when treating patients. Respirators also help to prevent the wearer from passing on any infections they may have to their patients. Unlike ventilators, respirations don’t push air into the lungs or aid breathing. They are purely used as personal protective equipment to prevent infection and injury. What is the Difference Between a Medical Ventilator and a CPAP Machine? Medical ventilators work via a tube inserted into the neck or mouth of the patient, usually for critical care in ICU settings. They use short ‘breaths’ of positive pressure to gently force air into the lungs and effectively breathe for the patient. CPAP machines, while a type of ventilator, work very differently. CPAP stands for Continuous Positive Airway Pressure. When a patient is using a CPAP machine, they will have a face mask like the Philips Pico Nasal over their nose and mouth. The machine then applies continuous pressure to their airway via the mask in order to help them breathe. CPAP machines are used by individuals to treat conditions such as obstructive sleep apnea as prescribed by a respiratory therapist. Using a CPAP machine at night prevents patients with obstructive sleep apnea from experiencing breathing difficulties as they sleep. How Long Can You Be on a Ventilator? Mechanical ventilation is used as a last resort, and medical professionals will try to discontinue ventilation as soon as is safely possible. This is because there are a number of health risks associated with long term ventilation. These include: Ventilator-associated pneumonia Sinus infection Blood clots Lung injury Damage to vocal cords The process of taking a patient off of ventilation is called weaning. With expertise developed over years in the field, our products have been enabled to offer invaluable support and resources to medical teams. When a patient is being weaned, doctors will carry out spontaneous breathing trials. During these trials, the patient will attempt to breathe with reduced or no ventilator support. Patients undergoing breathing trials are closely monitored by a team of medical professionals. For patients who have been on a ventilator for an extended period, successful weaning may require multiple attempts. Can a Person Recover From a Ventilator? As an expert in the field, it's crucial to understand that while many individuals placed on a ventilator will indeed recover from their underlying illness, injury, or surgical procedure, it's important to recognize that the process of recovery can vary significantly from person to person. Ventilators provide essential breathing support, allowing the body time to rest and heal. However, it's essential to approach each case with a realistic understanding that not all patients will recover following ventilation. Some individuals may have pre-existing conditions or severe underlying illnesses that make recovery more challenging. It's important for healthcare providers to closely monitor patients on ventilators, adjusting treatment plans as needed and providing comprehensive care to support the healing process. This may include physical therapy, nutritional support, and ongoing medical management. Furthermore, for patients and their families, it's essential to maintain open communication with healthcare professionals, ask questions, and participate actively in decision-making processes regarding care and treatment options. Is it Painful Being on a Ventilator? In most cases, the endotracheal or tracheostomy tubes used for ventilation are inserted when a patient is under general anaesthetic. This means the patient won’t experience any pain during the procedure. Once the tube is in place, it may cause a little discomfort. Patients will often be prescribed sedative and analgesic medications in order to make them more comfortable. Patients who are on invasive ventilation can’t talk and their movement is very restricted. They also can’t eat and so receive nutrients via an IV or through nasogastric feeding. Some patients who require long term ventilation may be able to use a portable machine. This will give them more freedom of movement and greater independence. What is the Price of a Medical Ventilator? The cost of a medical ventilator will vary depending on its make, model and capabilities. Good quality ventilators are available for around $8,500. A range of accessories and replacement parts are available for most ventilators to help equipment last longer and work efficiently. Where to Buy a Ventilator Ventilators are available to purchase from recognised medical equipment supply stores. As ventilators are essential pieces of life-saving equipment, they should only ever be sourced from trusted retailers. Explore our range of ventilators or get in touch to find out more about the products we offer. You’ll find more information on other health topics and equipment in the Medshop blog. Author: Steven John Cumper, B.App.SC. (Osteo.), M.Ost., is a businessman with a strong foundation in biomedical science and osteopathic medicine, who founded and led Medshop to international success, culminating in its acquisition by the Bunzl Group in September 2021, where he continues to serve as Managing Director (Medshop Group).
March 21, 2024
Steven Cumper
What is a Pulse Oximeter?
Measuring the oxygen saturation in a patient’s blood can tell a doctor a lot about their condition. In many cases, this measurement is an important indicator of the health of a patient and, if it drops, can be an early warning sign that something is wrong. Oxygen saturation is often regarded as a fifth vital sign, and monitoring levels of oxygen in the blood is now a standard part of patient care. Today, we’re taking a closer look at these small but powerful devices and finding out exactly how pulse oximetry contributes to the diagnoses, treatment and outcomes of patients. What is a Pulse Oximeter and What Does it Measure? A pulse oximeter is a medical device used to measure the oxygen saturation level in the blood and pulse rate. They are the small, clip-on devices that you see attached to patients’ fingertips. If you’ve ever been admitted to hospital, or watched a medical documentary or drama, you’ve almost certainly seen a pulse oximeter. A pulse oximeter is mainly used to take two important measurements: Oxigen Saturation Blood oxygen saturation is also known as SpO2. A SpO2 reading of 95% or more is generally considered to be normal. A SpO2 reading of 92% or less (at sea level) is an indicator that there’s not enough oxygen in the blood. This is important as low oxygen saturation levels, also known as hypoxemia, can lead to a number of acute, adverse effects. If low oxygen levels are experienced for an extended period of time, it can result in long term damage to a number of organs and negatively impact the patient’s outcome. Pulse Rate Pulse rate is one of the most important vital signs doctors use when caring for their patients. Most pulse oximeters will display the pulse rate – also known as heart rate, or HR - in terms of beats per minute. A normal resting heartbeat should be between 60-100 beats per minute. If a heart is beating more than 100 times per minute, it’s called tachycardia. A heart rate of less than 60 beats per minute is known as bradycardia. Both low and high pulse rates can be a sign that there’s something wrong. What is the purpose of a Pulse Oximeter? There are a number of reasons why a pulse oximeter might be required. These devices are commonly used to monitor patients when they are admitted to hospital. Even if their injury, disease or illness isn’t related to the respiratory or circulatory systems, it can still have an impact on blood oxygen saturation, so it’s important to keep a close eye on SpO2 readings. Patients who have chronic lung conditions or heart disease will often be monitored using a pulse oximeter. In some cases, they’ll be given pulse oximeters to use at home so they can monitor their own pulse rate and SpO2 levels. Conditions that commonly require a pulse oximeter include: Chronic obstructive pulmonary disease (COPD) Asthma Pneumonia Lung disease and cancer Anaemia Heart attack or heart failure Congenital heart defects How Do You Use a Pulse Oximeter? A pulse oximeter works by attaching painlessly to the fingertip. Once in place, they send two wavelengths of light into the finger, one to check pulse rate and the other to check oxygen saturation. This process takes a matter of seconds to complete. The readings made by the pulse oximeter are then displayed on the monitor, or handheld screen, that comes with the device. Pulse oximeters are used both for long-term patient monitoring and one-off checks. In some cases, they are also given to outpatients to use at home. This allows people living with chronic conditions to monitor their level of oxygen without visiting their doctor. What is PI on a Pulse Oximeter? Some pulse oximeters also display a PI reading. PI stands for Perfusion Index and it shows how strong the pulse is at the point where the pulse oximeter is attached. A PI display will range from 0.02% for a very weak pulse to 20% for a strong pulse. The higher the number, the better the blood flow to the fingertip. If the PI is persistently low, it could point to an issue with the patient’s circulation. Poor circulation can cause a number of problems, especially in the extremities. If a person has a low PI for an extended period of time, doctors will need to take action to help blood circulate more efficiently around the body. What is a Pulse Oximeter Used For? There are a number of reasons why a pulse oximeter might be required. These devices are commonly used to monitor patients when they are admitted to hospital. Even if their injury, disease or illness isn’t related to the respiratory or circulatory systems, it can still have an impact on blood oxygen saturation, so it’s important to keep a close eye on SpO2 readings. Patients who have chronic lung conditions or heart disease will often be monitored using a pulse oximeter. In some cases, they’ll be given pulse oximeters to use at home so they can monitor their own pulse rate and SpO2 levels. Conditions that commonly require a pulse oximeter include: Chronic obstructive pulmonary disease (COPD) Asthma Pneumonia Lung disease and cancer Anaemia Heart attack or heart failure Congenital heart defects What is PI on a Pulse Oximeter? Some pulse oximeters also display a PI reading. PI stands for Perfusion Index and it shows how strong the pulse is at the point where the pulse oximeter is attached. A PI display will range from 0.02% for a very weak pulse to 20% for a strong pulse. The higher the number, the better the blood flow to the fingertip. If the PI is persistently low, it could point to an issue with the patient’s circulation. Poor circulation can cause a number of problems, especially in the extremities. If a person has a low PI for an extended period of time, doctors will need to take action to help blood circulate more efficiently around the body. How Accurate are Pulse Oximeters? Pulse oximeters exhibit their highest level of accuracy when blood oxygen saturation falls within the range of 90% to 100%. As saturation levels decrease to between 80% and 90%, the accuracy of these devices diminishes. Their least accurate readings occur when saturation levels drop below 80%. It's important to note that readings may deviate by a few percentage points. For instance, if an FDA-cleared pulse oximeter indicates a saturation level of 90%, the actual oxygen saturation in the blood typically ranges between 86% and 94%. In general, most individuals with good health maintain blood oxygen levels between 95% and 100%, although this range may be lower for those with lung-related conditions. Why Use a Pulse Oximeter at Home? If you have a disease or condition that affects your lungs, heart or circulatory system, your healthcare provider may ask you to use a pulse oximeter at home. Monitoring your blood oxygen saturation at home can help you keep an eye on your health without constant visits to the doctor. Even people who don’t suffer from a chronic condition can benefit from having a pulse oximeter at home. Patients who are suffering from chest infections, and those concerned about COVID-19, can use a device to check SpO2 and pulse rate without visiting their doctor. If oxygen saturation falls, or their heart rate changes dramatically, it can be a sign that they need to seek proper medical care. As an expert in healthcare we also recommend for patients with COPD to actively monitor their oxygen levels at home, especially between doctor visits. A pulse oximeter provides a convenient way to track oxygen saturation levels and identify any trends or fluctuations. By regularly monitoring and documenting these readings, patients can play a more active role in managing their condition and communicate effectively with their healthcare provider. Which Pulse Oximeter Should I Buy? There is a broad choice of pulse oximeters on the market. This makes it easy to find the device that’s right for you. Pulse oximeters come in two basic designs, one type has a separate display and fingertip clip and the other has the display integrated into the main body of the device. In general, integrated pulse oximeters are more affordable than those with separate clips and displays. Pulse Oximeters for Home Use If you need a pulse oximeter for home use, an integrated fingertip pulse oximeter is probably the best choice. These compact oximeters sit comfortably on the fingertip and have clear digital displays and easy to use interfaces. This type of pulse oximeter is readily available for around $100. The Rossmax Finger Pulse Oximeter SB100 and the A340 Dual Colour OLED Fingertip Pulse Oximeter from Aero Healthcare, are both good options if you’re looking for a compact device. Pulse Oximeters for Children If you’re looking for a compact fingertip pulse oximeter for a child, Biolight Finger Pulse Oximeter is perfect. Lightweight, colourful and specifically designed for paediatric patients, it will help you to get accurate readings fast. The device comes with a convenient neck strap for hands free storage. This is especially useful when you’re out and about. Pulse Oximeters for Long Term Monitoring Although fingertip pulse oximeters are great for spot checks and home use, they’re often less versatile than devices with separate displays. If you need a pulse oximeter for long-term observation, a device with a separate handheld screen – or one that connects to a monitor – is ideal. Rossmax Hand Held Pulse Oximeter & Artery Check SA300 is a great option for hospital and clinical use or long term at home care. The device comes with an adult probe plus probes for neonatal and paediatric patients. It will give instantaneous warnings if readings fall outside the normal range and has a clear, backlit LCD screen. Commonly used in healthcare settings including emergency rooms, it’s one of the most trusted pulse oximeters around. If you’d like to find out more about pulse oximeters, or explore our range of products, take a look at the Medshop website or get in touch with a member of our team today. Author: Steven John Cumper, B.App.SC. (Osteo.), M.Ost., is a businessman with a strong foundation in biomedical science and osteopathic medicine, who founded and led Medshop to international success, culminating in its acquisition by the Bunzl Group in September 2021, where he continues to serve as Managing Director (Medshop Group).
March 21, 2024
Steven Cumper
How to Read a Pulse Oximeter Like a Boss
Accurately using a pulse oximeter is really not that difficult. In fact, by the time you finish reading this blog, you’ll see that there’s not much to it.
February 28, 2024
Steven Cumper
What is a Welch Allyn Otoscope and How to Use One
When it comes to medical diagnostics, few tools are as essential and irreplaceable as the otoscope. First described in the 14th century and modified in the 19th, diagnostic otoscopes are one of the most recognisable and commonly used medical instruments around, and the technology has made significant advances since those early designs. Investing in high quality otoscopes, alongside other diagnostic equipment such as ophthalmoscopes, retinoscopes, stethoscopes, and sphygmomanometers will help doctors and other medical professionals to accurately assess and diagnose their patients. Otoscopes can be used to screen for a variety of illnesses and conditions and are commonly used both in general checkups and specialist consultations. They are also available in a wide range of designs, with additional functionality that extends to examining the nasal canal and the throat. This in turn allows hospitals and clinics to provide patients with high-quality medical care that covers a broad range of areas. What is a Welch Allyn Otoscope? A Welch Allyn otoscope is a standard diagnostic tool produced by well-known medical manufacturer Welch Allyn. The Welch Allyn otoscope is a handheld instrument used by healthcare professionals to examine the ear canal and eardrum. It typically consists of a light source, a magnifying lens, and a disposable speculum or tip for hygienic examination. The US-based company is one of the most well-established names in the world of medical tools and accessories. Known for the quality of its products, its consistently high standards, and its innovative instruments, Welch Allyn is a trusted source for diagnostic sets and tools of all kinds. Types of Welch Allyn Otoscopes The otoscopes produced by the brand offer a number of useful functions and features. The company’s most affordable model is the Welch Allyn Pocket LED Otoscope. The device comes in four bright colours, making it ideal for use with younger patients and on paediatric wards. The instrument comes with either halogen HPX lighting or SureColour LED technology to allow doctors to accurately see all parts of the ear. It offers 2.5x magnification, increased battery life and a compact, lightweight design. The Welch Allyn 3.5V otoscope is a more advanced tool with a wider choice of functions. Six different heads are available for the otoscope, giving doctors a precise, specialist tool that’s ideal for their needs. Otoscope heads available include models with throat illuminators, models that feature lithium-ion or nickel-cadmium rechargeable handles, reusable ear specula and tools for pneumatic otoscopy. The Welch Allyn MacroView otoscope 3.5V offers doctors even better optics and magnification than other models. The instrument offers 30% higher magnification than traditional otoscopes and delivers almost twice the field of view at high magnifications compared to standard devices through the use of fiber-optic cool light technology. This can make it a lot easier to visualise the auditory canal and tympanic membrane. MacroView otoscopes are often used to enhance learning opportunities, aid decision making and boost patient outcomes. How to Use a Welch Allyn Otoscope Welch Allyn otoscopes are designed to be easy and intuitive to use, helping make diagnostics in patients more efficient. Adjustments can be made using the switches and dials on the head of the device, and with some instruments, you will also have the option of changeable heads. This provides the user with improved functionality and specialist features that suit a variety of examinations. Prepare the Otoscope Attach the appropriate speculum or tip onto the otoscope. Choose a size that fits comfortably into the patient's ear canal. Illuminate the Otoscope Activate the light source of the otoscope to ensure clear visibility during the examination. Insert the Otoscope Gently grasp the patient's outer ear and gently pull it upwards and backwards to straighten the ear canal. With the otoscope handle in one hand, carefully insert the otoscope into the ear canal with the other hand, avoiding excessive pressure. When otoscopes are held incorrectly, any flinches or sudden movements from the patient can result in damage to the ear canal. We recommend resting a finger against the patient’s neck should help to brace the otoscope and prevent the instrument causing any injuries. Examine the Ear Canal Slowly advance the otoscope into the ear canal while observing the ear canal walls for any signs of redness, swelling, discharge, or other abnormalities. Rotate the otoscope as needed to visualize different areas of the ear canal. If the area of the ear that needs to be examined isn’t clearly visible on the first attempt, the focus of the otoscope can be adjusted for better clarity. You may need to do this multiple times to find the best setting during the examination. Visualize the Eardrum Continue advancing the otoscope until the eardrum (tympanic membrane) comes into view. The eardrum should appear translucent and pearly gray in color. Note any signs of perforation, fluid accumulation, or other abnormalities. If doctors want to assess the tympanic membrane, they can use a pneumatic otoscope. These use changes in pressure to move the membrane, allowing diagnosis of issues in this part of the ear. Assessing this movement allows doctors to check for conditions including middle ear effusions, vascular lesions and inner ear fistulas. When the exam is complete, the used speculum should be removed from the otoscope to be cleaned and disinfected thoroughly before being returned. Additionally, proper storage of the specula and other accessories associated with your otoscope will help to extend their working life. Can an Otoscope See the Inner Ear? Otoscopes can’t be used to check the inner ear, however, they can provide doctors with useful information about the overall health of the ear and its various components, allowing a diagnosis of the inner ear based on the results. An otoscope allows doctors to see the ear canal and tympanic membrane. During an ear examination, an otoscope can be used to check for signs of infection, swelling, injury and other abnormalities. How Much Does an Otoscope Cost? The price of an otoscope varies according to its functionality, design, and the range of accessories included in the specific diagnostic kit. Standard otoscopes are available for less than $150 while more advanced models can cost over $200. More advanced otoscopes are often used by specialists while standard models are commonly used for check ups and other routine procedures. The Welch Allyn PocketScope Otoscope is the most affordable in our collection, while the MacroView and Welch Allyn 3.5V otoscopes are at the top end of the range. Welch Allyn produces a selection of accessories and parts for their otoscope range, although in many cases you will receive at least some of the accessories you need as part of your otoscope set. These help doctors to tailor their instruments to perfectly suit their patients and their medical requirements, allowing for a broad range of examinations within the ear, nose, and throat. Otoscopes are an essential tool for all family doctors and ear, nose and throat specialists, and they are among the most commonly used devices within the professional healthcare sector. For this reason, choosing a trusted brand such as Welch Allyn is a good way to ensure you are providing the best healthcare to your patients and that you get value for money with a device designed to last. To find out more about these innovative instruments and other Welch Allyn diagnostic sets and devices, browse the Medshop online store today. Author: Steven John Cumper, B.App.SC. (Osteo.), M.Ost., is a businessman with a strong foundation in biomedical science and osteopathic medicine, who founded and led Medshop to international success, culminating in its acquisition by the Bunzl Group in September 2021, where he continues to serve as Managing Director (Medshop Group).
January 31, 2024
Steven Cumper
How To Use a Digital Thermometer — A Guide
Quick, efficient and easy to use, digital thermometers are an increasingly popular choice for both domestic and professional users. There are three main types of digital thermometers: ear (tympanic) thermometer, digital ‘stick’ thermometers and infrared thermometer. Each type of thermometer provides fast, accurate readings, giving health professionals invaluable diagnostic information. In order to ensure that readings taken from a digital thermometer are as accurate and as useful as possible, the device needs to be used and read correctly. To help you precisely assess yourself, your child, or your patient, we’re looking at how to take a temperature with a digital thermometer. How To Use a Digital Thermometer? In most cases, doctors, nurses and other medical professionals will be shown how to take a temperature with a digital thermometer as part of their workplace training. However, it’s always a good idea to refresh your knowledge on the subject on a regular basis, especially as products, guidelines and standard practices change over time. Before using a digital thermometer, it's essential to identify the thermometer's intended use, as they're designed for specific measurement sites: ear (tympanic), oral (under the tongue), rectal, or axillary (under the arm). Some models, particularly tympanic thermometers, offer the versatility of infrared forehead readings, expanding their utility. Using a digital thermometer accurately is a blend of technique, knowledge, and experience. We advise that you always ensure the thermometer is clean and correctly set up before use. Also, patience is key, wait for the thermometer to signal that it has finished reading. This patience ensures accuracy, which is essential for making informed health decisions. How To Use a Digital Ear Thermometer? Instructions on how to use a digital ear thermometer should come with your device. These instructions will give you a precise idea of exactly how your thermometer works and how to get the best results. In general, your reading will be most accurate if the thermometer is placed in the correct position. Most digital ear thermometers require you to pull the ear gently back and out so that the probe can fit snugly into the ear canal. Once the thermometer is in position, wait until the device beeps. This will tell you that the reading has been taken successfully. In some cases, you may need to press a button to trigger the device. The thermometer should only take a few seconds to take the reading. It’s important that the patient remains still until the reading is complete. For accurate and reliable measurements, consider using the Welch Allyn Pro 6000. Once the patient’s temperature has been taken, the results will be displayed on the small digital screen on the side of the thermometer. In most cases, you’ll be able to choose whether to see results displayed in degrees Celsius or Fahrenheit. Some thermometers also give you the option to save readings for future comparison. If there’s any uncertainty about a reading, taking it again after a short interval can help ensure accuracy. However, be mindful that factors like earwax buildup, ear infections, or the shape of the ear canal can affect readings. In such cases, alternative types of thermometers might be more suitable. Your digital ear thermometer should be cleaned and sterilized after each use to avoid infection. How Do You Use a Digital Infrared Thermometer on the Forehead? Non-contact forehead thermometers like Omron MC720 are a good option for people who need fast, hygienic temperature readings. As they don’t touch the skin of the patient, they can be used on multiple people without the need for sterilization. When using a digital forehead thermometer, it’s always best to read the manufacturer’s guidelines before you begin. This will help to ensure your readings are as accurate as possible. When taking a reading, ensure the patient's forehead is around 2-3 cm from the thermometer, clear of hair, sweat, or cosmetics, as these can affect accuracy. Position the thermometer parallel to the forehead for a direct, unobstructed path to the skin. Press the main button to initiate the reading, and remember to keep the thermometer steady at the recommended distance until it signals the completion of the measurement, usually with a beep. It’s also advisable to take multiple readings and use the average to ensure accuracy, especially if the readings seem inconsistent. How To Use a Digital ‘Stick’ Thermometer in the Mouth? As an expert in the field, we'd like to emphasize the importance of proper preparation and usage when employing a digital mouth thermometer. Before any measurement, it's crucial to clean and sterilize the thermometer. This step ensures accuracy in readings and prevents cross-contamination, especially important in a clinical or multi-user environment. For accurate and reliable temperature measurements, consider the Welcare Digital Thermometers. When you’re ready, place the thermometer under the patient’s tongue, towards the back of their mouth. This area, known as the sublingual pocket, is ideal for temperature measurement due to its rich blood supply, providing a more accurate reflection of the body's core temperature. Ask the patient to close their lips around the thermometer. You’ll then need to wait until the device beeps or flashes to show the reading is complete before removing it. Some devices require you to trigger the reading manually using a large button on the front of the thermometer. How To Read a Digital ‘Stick’ Thermometer Under the Arm? When taking a temperature under arm with a digital thermometer, you’ll need to place the device directly against the skin and hold the arm gently against it. If you’re not sure how long to leave the digital thermometer under arm, simply wait until the device beeps or flashes to indicate the reading is complete, or check the manufacturer’s instructions. Clean the thermometer with disinfectant before storing it away. Keep in mind that underarm temperatures can be slightly lower than oral temperatures. If the reading is unusually high or if you have any concerns, it's best to consult with a healthcare provider. How To Take Children Temperature with Digital Thermometer? If you’re taking the temperature of a young baby, you’ll need to use an under arm digital thermometer or a forehead thermometer, as a suitable suggestion you could use Infant Tympanic Thermometer. If you’re unsure where to take the temperature with a digital thermometer, opt for an under arm reading as the baby is less likely to move and cause an inaccurate result. Older children can have their temperature taken with ear, mouth, armpit or forehead devices. Whichever method you choose, make sure the child stays as still as possible for the duration of the reading. If they move, you may need to take multiple readings in order to get an accurate result. Can You Use a Digital Thermometer for Basal Temp The basal temperature is an indicator of when a woman is ovulating. A lot of women track this temperature throughout their menstrual cycle in order to improve their chances of conceiving. We recommend basal body temperature to be measured immediately upon waking, before any physical activity is undertaken, to ensure accuracy and It's crucial to take the temperature at the same time every morning. Digital thermometers can be used to check a woman’s basal temperature. However, it’s often better to invest in a specialist basal body thermometer as these are more sensitive than standard digital thermometers and so are more likely to produce an accurate result. Basal thermometers often also come with a choice of programmes and memory options to make it easy to monitor your temperature during ovulation. Learn more about digital thermometers, and the high quality products we offer, by exploring our range or getting in touch with a member of our team today. Author: Steven John Cumper, B.App.SC. (Osteo.), M.Ost., is a businessman with a strong foundation in biomedical science and osteopathic medicine, who founded and led Medshop to international success, culminating in its acquisition by the Bunzl Group in September 2021, where he continues to serve as Managing Director (Medshop Group).
December 18, 2020
Medshop Editor
What is a Spirometer? Your Guide to Spirometry
Lung function is an important measure of a patient’s health. If the lungs are working well, a person should be able to breathe deeply, inhale plenty of oxygen and carry out daily tasks without a problem. If the lungs are damaged or suffering from disease, something as simple as breathing can be a challenge. Accurately measuring and monitoring lung function and airflow allows doctors to diagnose a range of illnesses and conditions and assess patients suffering from lung disease. One of the best ways of checking lung capacity and lung function is a spirometry test. Used by doctors in clinics, hospitals and surgeries around the world, this simple but effective test can be an important indicator of how efficiently the lungs are working. If you’re currently experiencing shortness of breath or difficulty breathing, your doctor may well use a spirometer to assess your condition. Learning all about what a spirometer is and what it is used for will help you prepare for the test and fully understand your spirometry results. What is a Spirometer? A spirometer is a small machine that is attached to a mouthpiece. Some spirometers have digital displays and are able to print the results of pulmonary function tests. Other spirometers are able to connect wirelessly to computers in order to provide doctors and nurses with a more user-friendly experience. Spirometers are used extensively in doctor’s surgeries, clinics and hospitals. A spirometry test is a quick outpatient procedure that’s commonly used to determine lung function and capacity. Spirometers allow the results of these tests to be known almost immediately, giving doctors a very useful tool for monitoring and diagnosing their patients with issues such as bronchitis and emphysema among many others. What Does a Spirometer Look Like? As different manufacturers use different designs, spirometers can vary significantly in their appearance. However, most devices are relatively small and all come with inhalers to allow the patient to take a deep breath into the machine. Some spirometers have built-in digital screens and others are designed to be paired with computers or monitors. A lot of high-quality contemporary spirometers have Bluetooth connectivity. This allows them to connect to mobile phones, printers and computers and helps to boost usability. What Does a Spirometer Measure? A spirometer is designed to measure two main things: The amount of air you can breathe out in one second The total volume of air you can exhale in one forced breath Doctors compare the measurements taken from a patient with other healthy people of a similar age, height and sex. If their results differ significantly from standard readings it could be an indication that something is wrong. Comparing the results of a patient’s spirometry test with other readings allows doctors to see if a lung problem is ‘obstructive’, ‘restrictive’ or both. Obstructive diseases affect a patient’s ability to breathe by narrowing their airways. However, the capacity of the lungs themselves is generally unaffected. Restrictive lung disease limits the amount of air a patient is able to hold in their lungs. This is generally because the lungs are unable to fully expand. What is a Spirometer Used to Diagnose? Spirometers are used to diagnose and assess a number of conditions and diseases. Some of the most common are: Asthma – an obstructive lung disease in which the airways become periodically swollen and narrowed. Asthma is normally a long-term condition. Chronic Obstructive Pulmonary Disease(COPD) – a group of lung conditions that narrow the airway and make it difficult to breathe. Cystic fibrosis– a degenerative condition in which the lungs and digestive system become clogged with thick, sticky mucus. Cystic fibrosisis genetic. Pulmonary fibrosis– scarring of the lungs caused by pollutants, medications and interstitial lung disease. Doctors use spirometers to diagnose these conditions and to monitor their progression. This is often very important as a lot of lung diseases are degenerative and so become worse over time. How Does A Spirometer Work and What is a Spirometry Test? As we’ve already seen, spirometers work by measuring both the amount of air you can breathe out in one second and the total volume a patient can exhale in one forced breath. Spirometers are used to carry out pulmonary function testing. During a test, you’ll be asked to sit down and a soft clip will be placed on your nose to ensure air doesn’t escape during the test. The nurse or doctor carrying out the spirometry test will tell you exactly what you need to do and may ask you to practice exhaling before they begin. When breathing into the spirometer, make sure you inhale deeply so your lungs are at their full capacity. You’ll then need to close your lips tightly around the mouthpiece before exhaling as quickly and as forcefully as you can. Make sure you expel all of the air from your lungs before you remove your mouth from the spirometer. You’ll normally need to repeat the test around three times in order to get accurate readings from your exhalations. In some cases, you’ll be given bronchodilator medication after the initial test and then asked to repeat the process after around 15 minutes. This allows doctors to assess whether or not your lungs respond to the medicine. What is a Normal Spirometer Reading? Your spirometry test will produce two main results. These are measured in terms of FVC ratio (forced vital capacity) and FEV1 (forced expiratory volume in one second). Doctors will also look at the FEV1/FVC ratio. FVC measures the total amount of air that you’re able to expel in one full breath. This is measured in litres. Healthy males aged 20-60 should be able to exhale 4.75 to 5.5 litres Healthy females aged 20-60 should be able to exhale 3.25 to 3.75 litres. FEV1 measures the amount of air you can forcefully expel in one second. Healthy males aged 20-60 should have an FEV1value of 4.5 to 3.5 litres Healthy females aged 20-60 should have an FEV1value of 3.25 to 2.5 litres The FVC/FEV1 ratio is calculated by dividing the measured FEV1 value by the measured FVC value. The ratio is expressed in terms of percentages. Healthy adults of the same age, height and gender should have a FVC/FEV1 predicted value of between 70% and 85%. A percentage of less than 70% is considered abnormal and could be a sign of obstructive lung disease. Types of Spirometers There are three main types of spirometers: standard spirometers, incentive spirometers and wet spirometers. Standard spirometers are used to check lung function and assess a patient’s condition. They’re commonly found in doctor’s surgeries and clinics and are used for diagnostic and monitoring purposes. What is an Incentive Spirometer and What is it Used For? Incentive spirometers are generally used to help a patient recover following surgery or illness. When a patient uses an incentive spirometer, they’ll be asked to close their lips tightly around the mouthpiece before breathing in for as long as possible. As they inhale, they’ll see the piston in the device begin to rise. They should aim to get this piston as high as possible during these rehabilitative lung function tests. When the patient can no longer breathe in, they should remove the mouthpiece, hold their breath for 3-10 seconds and then exhale normally. Repeating these exercises on a regular basis can help to improve lung function, breathing problems, and prevent a range of complications such as pneumonia. Incentive spirometers are handheld devices that can be used by the patient at home or in a hospital ward. How Do You Use a Spirometer for Breathing Exercises? In order to improve your lung function, you’ll need to repeat the process of inhaling, holding your breath and exhaling a number of times. Coughing in between breaths will help to dislodge any mucus that’s built up in your airway and further aid recovery. If you feel dizzy or lightheaded when carrying out breathing exercises on an incentive spirometer, take a break for a few minutes before trying again. What is a Good Incentive Spirometer Reading? As incentive spirometers are generally used by patients recovering from illness or surgery, readings can vary widely. If your doctor has asked you to use an incentive spirometer to help your lung function, they should begin by talking to you about the test results to aim for and how they’d like your readings to improve over time. What is a Wet Spirometer? A wet spirometer works on broadly the same principle as a standard spirometer. However, this type of device measures lung volume by looking at the displacement of a closed chamber that’s partially submerged in water. Air blown into the inverted chamber causes it to rise and move an indicator along a scale. As wet spirometers are less compact and less portable than standard dry spirometers, they’re less commonly used in professional healthcare settings. How Much Does a Spirometer Cost? The cost of a spirometer can vary significantly depending on the brand and the functionality of the device. In general, good quality spirometers cost between $1,800-$2,800. If you’d like to find out more about spirometry or explore our excellent range of professional spirometers, take a look around the Medshop Australia store or get in touch with a member of our team today.
November 29, 2020
Steven Cumper
What Does N95 Mean? How and When to Wear an N95 Mask
Over the past few months, it’s safe to say that we’ve all become more aware of the importance of PPE, and the increase in mask wearing during the COVID-19 pandemic, one of the most essential elements of personal protective equipment, has allowed us to appreciate their efficacy like at no other time. Masks help to prevent virus droplets entering the respiratory system and stop an infected person from exposing others to risk, something which has proven critical in the fight against the coronavirus. However, today, people are wearing different types of masks in different environments, and from your standard cotton face covering to the iconic surgical mask, each offers different levels of respiratory protection and filtration efficiency. One of the most widely recognised standards used in medical settings is N95, and many healthcare workers will already be familiar with this type of disposable respirator. These types of masks are used in hospitals, clinics and doctors surgeries but they are also becoming increasingly common outside of these settings as members of the public strive to stop the spread of the virus and protect themselves from airborne contaminants. For those unaware of the difference between a surgical N95 respirator and say, a less protective surgical mask or cotton face covering, here we look at exactly what these highly effective masks entail. Additionally, if you’re currently looking to restock your supplies of PPE, investing in good quality masks is essential, and here we take a closer look at how to wear them and how they can protect you and your patients from infection. What is a N95 Particulate Respirator? A N95 particulate respirator is a face mask that’s designed to filter out particulates as low as 0.3 microns. This type of facemask was originally developed for use in the mining and construction industries, specifically manufactured to protect the wearer from breathing in potentially dangerous particles in the atmosphere. N95 respirators have also been shown to be effective as protection against engineered nanoparticles and other aerosols. Standard N95 respirators will protect the wearer from a range of particles including dust, paint droplets and airborne pollution. They won’t protect against gasses or vapours and they are only effective in the absence of oil particles such as lubricants, cutting fluids and glycerine. If you want to protect yourself from virus droplets and infection, you need to look for a surgical N95 mask. These types of masks are designed to offer a tighter fit around the nose and mouth. This helps to prevent virus droplets being either inhaled or spread by the wearer. Using a N95 respirator mask correctly can significantly reduce the risk of infection and prevent the transmission of a virus. N95 masks that are used in medical settings are not reusable and should be disposed of after each use. However, N95 respirators that are used for industrial purposes can be cleaned and re-worn multiple times. There are some people who may not be able to wear N95 masks. This is because respirators can make breathing more difficult. If you have one of the following conditions, you should talk to your doctor before wearing a face covering. · Emphysema · Pulmonary fibrosis · Claustrophobia · Panic attacks · Heart disease · Anxiety · Autism What is a N95 Approved Mask? When a mask has a N95 rating it shows that it meets the US National Institute for Occupational Safety and Health (NIOSH) N95 classification for air filtration. This standard states that a respirator needs to filter at least 95% of airborne particles. The standard does not require the mask to be resistant to oil. If a mask is N95 approved, it will prevent you from breathing in 95% of the particulates in the air around you. It won’t stop you from breathing oxygen. Only masks that meet this standard can be labelled as N95. These types of masks are also known as N95 filtering face piece respirators, and they are used by professionals in a number of industries including healthcare, construction and mining. How Long Can You Wear a N95 Mask? The length of time you can wear a N95 mask for will vary depending on the setting and the people you are coming into contact with. The CDC says that N95 respirator masks can be worn continuously for up to eight hours without a problem. This length of use is appropriate if you’re only working in healthcare settings where one patient or with a single group of patients are all infected with the same pathogen. If you’re moving between hospital wards or between patients with unknown infections, a new mask should be worn for each occasion. Changing masks on a regular basis helps to prevent cross contamination and protect patients and staff from infection. If you’re moving between patients and don’t have an option to dispose of your mask, wearing a clear visor can help to prevent virus droplets and small particles contaminating the respirator. Is a P2 Mask the Same as N95? When looking for PPE supplies, you may well see some face masks with a N95 rating and others with a P2 classification. Both N95 and P2 masks offer a high level of protection with . N95 masks filter at least 95% of particulates from the air while P2 masks filter 94%. The main difference between the standards is the area of classification. While N95 masks are rated by NIOSH, P2 masks are regulated by the European Union. How Does a N95 Mask Protect Against Viruses? A lot of viruses are spread by airborne particles. These particles are released into the air when an infected person coughs, sneezes or breathes next to a non-infected person. When the virus droplets are inhaled, the non-infected person can catch the virus and become ill. N95 respirators help to protect against the spread of viruses by through particulate filtering that prevents virus droplets in air entering into the mouth or nose. If an infected person wears a N95 mask, the respirator will prevent virus droplets from spreading when the person coughs, sneezes or exhales. If a non-infected person wears a N95 mask, they will be protected from 95% of the virus droplets in the air and have a much lower risk of becoming infected. How to Wear a N95 Respirator? Wearing your N95 respirator correctly will ensure you benefit from the full protection of the face mask. The respirator needs to cover both your nose and mouth and should form an air-tight seal with your face. If you’re not sure how to wear a N95 mask, ask your employer for guidance. What is a N95 Respirator Fit Test? A N95 Respirator Fit Test is used to ensure people using N95 masks know how to properly use the PPE. During the test, employees will be asked to try on a selection of N95 respirators. The person carrying out the test will check to see if the wearer is able to create an air-tight seal between the mask and their face. This is important as an air-tight seal will prevent contaminated air escaping from the mask and also prevent virus droplets entering the mask. Fit Tests should be carried out when this type of mask is first used and then every year after that. Once an employee has established which type of N95 mask fits them best, they should stick to this style for all future use. What Are N95 Mask Sizes? N95 masks are available in a range of sizes. This helps to ensure masks fit the wearer precisely. The way masks are sized varies depending on the manufacturer, and in most cases, you’ll be able to choose from small, small/medium, medium and medium/large sizes. If you work for a company or organisation that requires you to wear a N95 mask, they should provide you with a choice of sizes for your fit test. This will give you the opportunity to try on a few different sizes and find the mask that best fits your face shape. What is a N95 HEPA Mask? HEPA stands for high efficiency particulate air filter. HEPA filters are incredibly effective, removing between 99.95% and 99.999% of particulates from the air while also protecting the wearer from allergens, bacteria, mould, pollution and viruses. N95 respirators aren’t fitted with HEPA filters and only remove 95% of particulates from the air. In most medical settings, a N95 mask will offer sufficient protection. If you need more protection than a N95 mask provides, look for a HEPA air-purifying respirator or N100 respirator instead. What is a N95 Particulate Respirator Made Of? Most N95 particulate respirator masks are made from synthetic plastic fibres. These fibres are woven into a fine mesh and are able to catch at least 95% of particulates that pass through them. Polypropylene is one of the most common polymers used in the production of N95 masks. Where Can You Buy a N95 Mask in Australia? As N95 masks are an important part of PPE, they should always be purchased from a reliable supplier. This is true whether you’re working in construction, mining or healthcare. If you plan to buy a mask from a local hardware shop or another non-specialist retailer, make sure the mask is rated N95 and not KN95. The KN rating shows the product is made in China. And although these masks are supposed to meet the same standards as N95 respirators, NIOSH has found that, in many cases, KN95 masks fall well below standard. A good quality N95 mask will probably cost between $40 and $80. Discounts are often available for bulk orders, so if you’re purchasing on behalf of a clinic, hospital or group, make sure you take a look at the offers available before you buy. For the best choice of single-use N95 masks and the most competitive prices, take a look at the Medshop Australia collection today.
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