<prompt> Regarding pulmonary function test all are TRUE, EXCEPT:-Total lung volume increases in emphysemaCompliance decreases in interstitial lung disease.Compliance is total lung distensibilityFEV1 is forced expiratory rate at one minute.  <response>: Ans. is d i.e. FEVl5 is forced expiratory rate at one minute FEV1 is the fraction of vital capacity expired during the first second of a forced expiration FEV1 also k a timed vital capacity.Compliance is change in lung volume per unit change in airway pressure ?V?P - It is the stretch ability of lungs and chest wall.Compliance is decreased in:Pulmonary congestionInterstitial pulmonary fibrosisInterstitial lung diseasesCompliance in increased inEmphysema 