peak expiratory flow

peak expiratory flow
(PEF) the greatest rate of airflow that can be achieved during forced exhalation, beginning with the lungs fully inflated. Called also peak expiratory flow rate.

Medical dictionary. 2011.

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Look at other dictionaries:

  • peak expiratory flow rate — (PEFR) see under flow …   Medical dictionary

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  • peak expiratory flow rate — PEFR the maximum rate at which a person can forcibly expel air from the lungs at any time, expressed usually in litres per minute (occasionally in litres per second). A low value can help diagnose asthma in the correct clinical context, and… …   The new mediacal dictionary

  • peak flow meter — pēk flō n a device that measures the maximum rate of air flow out of the lungs during forced expiration and that is used esp. for monitoring lung capacity of individuals with asthma (as to indicate bronchial narrowing) called also peak expiratory …   Medical dictionary

  • Peak flow meter — A peak flow meter is a small, hand held device used to manage asthma by monitoring airflow through the bronchi and thus the degree of obstruction in the airways. FunctionThe peak flow meter measures the patient s maximum ability to exhale, or… …   Wikipedia

  • peak flow meter — noun An instrument that monitors the peak expiratory flow rate of air from a persons bronchi; used to manage asthma …   Wiktionary

  • flow — 1. To bleed from the uterus less profusely than in flooding. 2. The menstrual discharge. 3. Movement of a liquid or gas; specifically, the volume of liquid or gas passing a given point per unit of …   Medical dictionary

  • PEFR — peak expiratory flow rate * * * see peak expiratory flow rate * * * peak expiratory flow rate …   Medical dictionary

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  • PEFR — Peak Expiratory Flow Rate (Medical » Physiology) …   Abbreviations dictionary

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