Medically reviewed by Daniel More, MD A peak flow meter is used to measure your peak expiratory flow rate (PEFR). PEFR describes how quickly your lungs expel air during a forceful exhalation after ...

PEFR stands for peak expiratory flow rate. It's a test that measures how fast you can exhale. Learn more about PEFR, why your doctor may suggest this test, how to prepare, what to expect, and ...

SAN FRANCISCO — Physicians can use peak expiratory flow as a first-line tool for assessing variable airflow limitations among patients with asthma, according to a poster presented at the ...

That’s your peak expiratory flow rate. It can also help with the amount of air you breathe out. That’s forced expiratory volume.

When spirometry is unavailable, physicians can use the St. George’s Respiratory Questionnaire score plus peak expiratory flow to screen for COPD, according to data published in American Journal ...

The flow characteristics of both expiration and inspiration were determined in a trained, 285-kg bottle-nosed porpoise. The largest tidal volume measured was 26.4 liters. For purposes of scaling we ...

(HealthDay News) — A 5-item questionnaire plus peak expiratory flow (PEF) can identify undiagnosed chronic obstructive pulmonary disease (COPD), according to a study published in the American ...

Cross-workshift spirometry on days when AP was administered showed a statistically significant mean decrease (0.14 liter) in forced expiratory volume in 1 second. There was no statistically ...