This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'Regarding pulmonary function test all are TRUE, EXCEPT \nSelect and explain. \nA. Total lung volume increases in emphysema, B. Compliance decreases in interstitial lung disease, C. Compliance is total lung distensibility, D. FEV1 is forced expiratory rate at one minute', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Changes in lung function tests in obstructive lung diseases- Eg: Emphysema\nTLC- Increase\nRV- Increase\nFRC- Increase\nPeak expiratory flow rate- Decrease\nFEV1- Decreased out of proportion to FVC (Forced vital capacity)\nForced expiratory vital capacity (FEVC)- Normal to slightly decreased\nFEV1/FEVC- Decreased (May decrease as low as 20-30%)\n\xa0Changes in lung function tests in restrictive lung diseases\nTLC- Decreased\nRV- Decreased\nFRC- Decreased\nForced mid expiratory flow rate- Decrease\nFEV1- Decreased in proportion to FVC (Forced vital capacity)\nForced vital capacity (FVC)- Decreased \nFEV1/FEVC- Near normal or increased.\nLung compliance- decreased\nDiffusion capacity- decreased\nFEV1- Forced expiratory volume in 1 second.', 'role': 'assistant'}]