Home > Health & Wellness > Health Library > Forced Expiratory Volume and Forced Vital Capacity
Forced expiratory volume (FEV) measures how
much air a person can exhale during a forced breath. The amount of air exhaled
may be measured during the first (FEV1), second (FEV2), and/or third seconds
(FEV3) of the forced breath.
Forced vital capacity (FVC) is the total
amount of air exhaled during the FEV test.
Forced expiratory volume and forced
vital capacity are lung function tests that are
spirometry. Forced expiratory volume is the most
important measurement of lung function. It is used to:
ByHealthwise StaffPrimary Medical ReviewerE. Gregory Thompson, MD - Internal MedicineSpecialist Medical ReviewerRobert L. Cowie, MB, FCP(SA), MD, MSc, MFOM - Pulmonology
Current as ofMay 23, 2016
Current as of:
May 23, 2016
E. Gregory Thompson, MD - Internal Medicine & Robert L. Cowie, MB, FCP(SA), MD, MSc, MFOM - Pulmonology
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