This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gall Bladder & Bile Ducts, Subject name: Surgery
[{'content': 'Patient with hepatic insufficiency is being planned for surgery. Which vitamin deficiency has to be treated first? \nSelect and explain. \nA. Vitamin A, B. Vitamin D, C. Vitamin K, D. Vitamin E', 'role': 'user'}, {'content': "Answer: C \nExplanation: ANSWER: (C) Vitamin KREF: Harrison's 18th ed chapter 302Vitamin K deficiency in adults may be seen in patients with chronic small-intestinal disease (e.g., celiac disease, Crohn's disease), in those with obstructed biliary tracts, or after small-bowTel resection.Patients with liver disease may have an elevated prothrombin time because of liver cell destruction as wrell as vitamin K deficiency. If an elevated prothrombin time does not improve on vitamin K therapy, it can be deduced that it is not the result of vitamin K deficiency.", 'role': 'assistant'}]