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: Anaesthesia
[{'content': 'Complication of positive pressure ventilation – \nSelect and explain. \nA. Pneumothorax, B. Bradycardia, C. Decreased ventilation, D. Arrhythmias', 'role': 'user'}, {'content': 'Answer: A \nExplanation: PEEP & CPAP can cause barotrauma which may result in pneumothorax, pneumoperitoneum, penumopericardium/ cardiac tamponade.', 'role': 'assistant'}]