This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
[{'content': 'During maxillary wash sudden death is due to \nSelect and explain. \nA. Air embolism, B. Maxillary aery thrombus, C. Bleeding, D. Meningitis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Air embolism: It is rare but may prove fatal. This complication can be prevented by avoiding insufflation of air into the antrum after lavage. Ref : Dhingra 7e pg 466.', 'role': 'assistant'}]