Tag Archives: Forced Expiratory Volume 1

Technical terms you may hear after spirometry tests

FEV1 or Forced Expiratory Volume 1 The maximum volume of air forced out from your lungs in 1 second (from full deep breath in). FVC orĀ Forced Vital Capacity The FVC is measured by taking your biggest breath in (total lung capacity) and blowing out as fast as possible until you cannot breathe out any more. […]