Definition of Meter, peak-flow

Reviewed on 6/3/2021

Meter, peak-flow: 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.

SLIDESHOW

What Is Asthma? Symptoms, Causes, and Treatments See Slideshow

Health Solutions From Our Sponsors