Health Library
The Health Library is a collection of health and wellness resources created for learning and accessibility. Select a topic below for related health information or search for a topic in the search bar for more information on other medical conditions.
Peak Flow Meter
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Learn how to use a peak flow meter to check how well your lungs are working.
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As someone with asthma, you know how important it is to monitor your condition. Your doctor may want you to know how well your lungs are "working." Is their ability to move air in and out staying the same, or is it getting better or worse? When you monitor your asthma, you can control it. When you control your asthma...
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Peak expiratory flow (PEF) measures how much air you or your child can breathe out using the greatest effort. It is used in the monitoring and treatment of asthma to determine how well your lungs are functioning. Your peak flow drops when the tubes...