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
An elective surgery is to be done in a patient taking heavy doses of Aspirin. Management consists of : 
Select and explain. 
A. Proceed with surgery, B. Stopping aspirin for 7 days and then do surgery, C. Preoperative platelet transfusion, D. Intra operative platelet transfusion
B: Stopping aspirin for 7 days and then do surgery
Answer: B: Stopping aspirin for 7 days and then do surgery 
Explanation: 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.