Test used to assess how well the lungs function by measuring how much air is inhaled, how much is exhaled and how quickly it is exhaled.
Volumes or the ability of the lungs to fully expand (TLC, FRC, RV).
Flow rates or the rate of inflow and outflow of air (FEV1, forced expiratory flow [25%-75%]).
Maximum voluntary ventilation or airflow through major airways by rapid inspiration and expiration maneuvers (MVV).
Maximum inspiratory and expiratory pressure, a measure of respiratory muscle strength (Pi[max], Pe[max]).
Diffusing capacity (DLCO) or measurement of the ability of oxygen to get into the blood.
Interpretation will be (1) normal, (2) obstructive, (3) restrictive, or (4) combined obstructive and restrictive.