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
Pyrexia due to wound infection commonly occursafter- 
Select and explain. 
A. Third post operation day, B. Fifth post operation day, C. Seventh post operation day, D. Second post operation day
B: Fifth post operation day
Answer: B: Fifth post operation day 
Explanation: Ans. is 'b' i.e., Fifth post operation day "Wound infections most commonly occur 5 to 6 days post operatively but may present sooner or later than that" -Sabiston.