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': 'Spirometry measures all of the following except: \nSelect and explain. \nA. TLC, B. ERV, C. IRV, D. FVC', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans:A.)TLCSpirometry can measure :- Tidal volume (TV), inspiratory reserve volume (IRV), expiratory reserve volume (ERV), vital capacity (VC), forced vital capacity (FVC), FEVI.Spirometry cannot measure :- Residual volume (RV), functional residual capacity (FRC), total lung capacity (TLC).', 'role': 'assistant'}]