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
All of the following are indication of total parental nutrition except - 
Select and explain. 
A. Post-operative ileus, B. Enterocolic fistula, C. Acute pancreatitis, D. none
D: none
Answer: D: none 
Explanation: Ans. is None Schwaz Surgery gives a list of conditions for which TPN has been used. It includes patients with prolonged paralytic ileus (>7 to 10 days) following major surgeries. Use of TPN in acute pancreatitis has been mentioned in Sabiston I 8/e p1602 and Schwaz 9/e p45.