You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Pulmonary function changes seen in Emphysema are A/E:- and explain in detail?
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.