To Measure Forced Vital Capacity (FVC) and Forced Expiratory Volume

Multiple Choice

To measure forced vital capacity (FVC) and forced expiratory volume (FEVT) , the subject should .

A) take a deep inspiration, then rapidly and forcefully exhale as much air as possible
B) take a deep inspiration, then calmly and carefully exhale as much air as possible
C) exhale as much air as possible, then inhale as much air as possible