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': 'In a surgical patient, the causes of non-surgical infection -a) Lower RTIb) Wound infectionc) Clostridium difficile diarrhoead) UTI \nSelect and explain. \nA. abc, B. ad, C. acd, D. bde', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Postoperative patients are at increased risk for a variety of non-surgical postoperative nosocomial infections.\nThese are:\n\nUrinary tract infection- (Most conunon)\nLower respiratory tract infections-3rd most common (2nd MC cause being surgical site infection (SSI)) LRTI are the leading cause of death d/t nosocomial inf.\nAntibiotic-associated diarrhoea, caused by clostridium difficile.\nSinusitis\nMeningitis', 'role': 'assistant'}]