This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Medicine
[{'content': 'A ventilator pressure relief valve stuck in closed position can result in \nSelect and explain. \nA. Barotrauma, B. Hypoventilation, C. Hypoxia, D. Hyperventilation', 'role': 'user'}, {'content': "Answer: A \nExplanation: A ventilator pressure relief valve stuck in closed position can generate excessively high pressure in the patient's lung,resulting in barotrauma.Barotrauma and volutrauma overdistend and distrupt lung tissue;may be clinically manifest by interstitial emphysema,or pneumothorax;and can result in the liberation of cytokines from over distended tissues,fuher promoting tissue injury. Reference:Harrison's Medicine", 'role': 'assistant'}]