This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endometrial Carcinoma and Hysterectomy, Subject name: Gynaecology & Obstetrics
[{'content': 'All of the following are risk factors for postoperative infection after hysterectomy except: \nSelect and explain. \nA. Surgery for malignancy, B. Age > 50 yrs, C. Urinary catheterization > 7 days, D. Use of blood transfusion', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Older women will have poor tolerance of surgery and also more susceptibility to infections due to reduce post menopausal immunity. Malignancies are characteristically making a woman more prone to infections because of the cachexia and immuno-suppresion with malignancies Catherization may introduce infection in the bladder and should be done only when necessary with proper aseptic technique. Prolonged catheterisation increases risk of catheter associated UTI.', 'role': 'assistant'}]