Pulmonary function changes seen in Emphysema are A/E:-
Emphysema: Destruction of alveolar septa leads to increase in compliance (C= DV/DP) Emphysema increase airway resistance & work of breathing difficulty in exhaling air due to compression of bronchioles leads to eventual increase RV & increase TLC (barrel chest). FEV1 and FVC =reduced in emphysema.
| TLC
| RV
| FEV1
| DV/DP
Respiratory System Pa 1