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': 'When do we have to sta antibiotics to prevent post-operative infection? \nSelect and explain. \nA. 2 days before surgery, B. After surgery, C. 1 week before surgery, D. 1 hour before surgery & continue after surgery', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., 1 hour before surgery & continue after surgery Prophylactic antibiotics are administered before the skin incision is made. Repeat dosing occurs at an appropriate interval, usually 3 hours for abdominal cases or twice the half-life of the antibiotic. Perioperative antibiotic prophylaxis generally is not continued beyond the day of surgery.", 'role': 'assistant'}]