The Estimated/Expected Peak Expiratory Flow (Peak Flow) quantifies asthma exacerbation severity.

This peak flow calculator determines the predicted maximum speed of expiration based on age, gender and height and compares it to the measured PEFR.

The peak expiratory flow (PEF), also called peak expiratory flow rate (PEFR) and peak flow measurement, [1] is a person's maximum speed of expiration, as measured with a peak flow …

Peak flow measurement is a quick test to measure air flow out of the lungs. The measurement is also called the peak expiratory flow rate (PEFR) or the peak expiratory flow (PEF). Peak flow …

Jun 15, 2025 · What Is a PEFR Test? A peak expiratory flow rate (PEFR) measures how effectively you exhale. Also called a peak flow meter, this handheld device helps you …

Aug 31, 2018 · The peak expiratory flow rate (PEFR) test measures how fast a person can exhale. The PEFR test is also called peak flow. This test is commonly performed at home with …

Mar 1, 2014 · A step-by-step guide to explaining and performing peak expiratory flow rate (PEFR) measurement, with an included video demonstration.

Peak expiratory flow rate (PEFR) is the maximum flow rate generated during a forceful exhalation, starting from full lung inflation. Peak flow rate primarily reflects large airway flow and...

Nov 4, 2024 · 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 you fully inhale.

Peak Expiratory Flow Rate (PEFR) is a measurement of the maximum amount of air that a person can forcefully exhale in one breath. It is typically measured using a peak flow meter, which is a …