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Within the tube lies a lever or ball mechanism that moves along the readings when users blow into the meter. One end of the tube has an open area that serves as a mouthpiece.
#Peak flow meter portable#
The portable device consists of a plastic tube that features numerical and sometimes color-coded readings. When you see your healthcare provider, bring the information you’ve recorded in your asthma diary along with your peak flow meter to make sure you’re using it correctly.A peak flow meter is a tool used by physicians to assess and monitor lung function. If you have any questions, ask your healthcare provider for an explanation. Make sure you understand and can follow your Asthma Action Plan. You’ll use the peak flow values and symptoms to take action to get or stay healthy. If you are in the yellow or red zone, you will need to adjust your medicine according to your healthcare provider’s instructions. Red zone: Less than 200 LPM (less than 50%).Record these ranges in your asthma diary so that you can refer to them easily.įor example, if your personal best peak flow is 400 LPM, the zones will be: To find the number ranges for your Asthma Action Plan zones, multiply your personal best peak flow by 1.0 (100%), 0.8 (80%), and 0.5 (50%). Peak flow is less than 50% of your personal best. Peak flow is 50% to 80% of your personal best. Yellow zone: Your asthma is getting worse or is poorly controlled.Peak flow is 80% to 100% of your personal best. Green zone: Your asthma is well-controlled.
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Your Asthma Action Plan has three zones: green, yellow and red. To help with understanding how this works, caregivers use the “traffic light” system. Keeping a daily record of your peak flows and understanding how this relates to changes in asthma will help you to better manage asthma episodes. Your caregiver may use these numbers to create a plan for helping you control your asthma. Regular use of peak flow will help you recognize early decreases in airflow and will be used to guide your asthma care. Once you have determined your personal best peak flow number, continue to perform peak flows daily or as instructed by your healthcare provider. Do the test before taking any inhalers, or as instructed by your healthcare provider.Do them at the same time in the morning and in the early evening.Perform peak flow testing twice a day for two weeks.You’ll compare all of your other peak flow readings to your personal best peak flow number. Good control means you feel good and do not have any symptoms. The "personal or usual best" peak flow is the highest number you can perform over a two-week period when asthma is under good control. How do you find your "personal best" peak flow? Record any symptoms you are having, like wheezing, chest tightness, shortness of breath or coughing and if you’ve taken your rescue/emergency medication.Write down the highest of the three readings on a sheet of paper, calendar or in your asthma diary.The highest of these three readings is your daily peak flow.Put the red marker back at the bottom of the peak flow meter and repeat these steps three times.Write down the number by the red marker on the meter.
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