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: Surgery
[{'content': 'An elective surgery is to be done in a patient taking heavy doses of Aspirin. Management consists of : \nSelect and explain. \nA. Proceed with surgery, B. Stopping aspirin for 7 days and then do surgery, C. Preoperative platelet transfusion, D. Intra operative platelet transfusion', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is \'b\' i.e., Stop aspirin for 7 days and then do surgery "Aspirin should be stopped 1 week before elective surgery." - KDT Aspirin, even in small doses, irreversibly inhibits Thrombooxane A2 (TXA2) synthesis by platelets. Thus it interferes with platelet aggregation and increase the bleeding time. This effect lasts for a week, the turnover time of platelets.', 'role': 'assistant'}]