[A test of lung function, the FEV1 is the volume exhaled during the first second of a forced expiratory maneuver started from the level of total lung capacity. It is the most frequently used index for assessing bronchoconstriction or bronchodilatation. ( NCI )]
UMLS (NCI) C0849974FEV1%VC
Forced Expiratory Volume 1 Test
Forced Expiratory Volume in 1 Second
PFT/FEV1
Pulmonary Function Test/Forced Expiratory Volume 1