An adult has much larger airways than a child and needs the larger range. A low range peak flow meter is for small children, and a standard range peak flow meter is for older children, teenagers, and adults. For accurate results, be sure to give the test your best effort every time. Peak flow meters come in two ranges to measure the air pushed out of your lungs. Peak flow monitoring relies on your trying as hard as you can. Use the same position every time you test your PEF. Make sure the indicator is at the bottom of the meter (zero). Heres what you do: Stand up or sit up straight. When used correctly, a peak flow meter can reveal narrowing of the airways before asthma symptoms appear. The device measures air flowing out of the lungs, called peak expiratory flow rate (PEFR), as a child forcefully blows into the device. Be sure to sit up or stand up as straight as possible to help you take as large a breath as you can. A peak flow meter is simple to use for tracking your asthma. A peak flow meter (PFM) is a device used to measure how well your childs asthma is under control. Or your doctor may recommend that you test your lung function in the morning before you take your medicine.Īvoid eating a heavy meal before performing a PEF test. Patients: Talk to your healthcare professional about using the chart. Healthcare professionals: Download and print the chart and instructions for your patient. Each page on the chart holds 8 weeks of peak flow readings. You may need to wait a few hours after taking the medicine to do the test. The Woolcocks peak flow chart makes it easy to detect exacerbations and gradual changes in a persons asthma. If you use medicine to help with breathing (such as for asthma), talk to your doctor to learn how long you should wait to test your lung function after taking your medicine. If you have questions about how to use a peak flow meter or how to read the results, talk with your doctor. Ask your doctor to show you how to use this device before you use it at home. Read and follow the instructions included with the peak flow meter. A peak flow meter is an inexpensive hand-held device you breathe into as hard and as fast as you can. To perform the peak expiratory flow (PEF) test, you need a peak flow meter. How do you measure your peak expiratory flow? Getting started
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