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  1. www.nhs.uk › conditions › peak-flowPeak flow test - NHS

    Your peak flow score – also known as your peak expiratory flow (PEF) – will be displayed on the side of your peak flow meter. This is given in litres of air breathed out per minute (l/min). What's considered a normal score depends on your age, height and sex.

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  2. 6 Οκτ 2024 · Peak expiratory flow (PEF), a key indicator of lung function, offers clinicians valuable insights into asthma management. Typically measured with a peak flow meter, PEF provides an objective measure of airflow limitation, aiding in assessing asthma control and managing exacerbations (see Image. Peak Flow Meter).[1] A maximal effort is required when using a peak flow meter to obtain valid ...

  3. 23 Οκτ 2024 · Peak flow meters come in two ranges to measure the air pushed out of your lungs. A low range peak flow meter is for small children, and a standard range peak flow meter is for older children, teenagers, and adults. An adult has much larger airways than a child and needs the larger range.

  4. www.asthmaandlung.org.uk › symptoms-tests-treatments › testsPeak flow | Asthma + Lung UK

    You measure peak flow by taking a full breath in and blowing out as hard and fast as you can into a small hand-held device called a peak flow meter. Your peak flow score is also called your peak expiratory flow (PEF).

  5. 29 Ιουλ 2024 · This peak flow calculator allows you to calculate your normal peak expiratory flow (PEF), as well as your peak expiratory flow ratio (PEFR). The ratio is a relation between your measured PEF and the normal value, or, if you know it — your personal best.

  6. A peak flow meter is a simple, easy-to-use device that measures how fast you can exhale a lungful of air. It helps manage asthma and can even indicate when your asthma is getting worse before you have symptoms. Use your peak flow meter at least once a day or as directed by a healthcare provider.

  7. Peak flow measurement can show the volume and rate of air that can be forcefully breathed out of the lungs. The measurement should be started after a full lung inhalation. During the test, you blow forcefully into the mouthpiece of a device. A peak flow meter (PFM) is used most often.

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