A m e r i c a' s   H e a l t h   S e a r c h   E n g i n e Pharmacology, and Medical Terminology Lookup

Definition of Peak-flow meter Peak-flow meter: This hand-held device measures air flow how fast air is blown out of the lungs. Patients can use peak-flow meters to measure their own air flow regularly. The use of a peak-flow meter allows patients to obtain a much earlier indication of an oncoming attack, for example, of exercise-induced asthma, a type of asthma typically triggered by exercise. The "peak flow" refers to the maximum flow rate of air breathed out during forced expiration.

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