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': 'Prologed Post-op ileus is best treated by - \nSelect and explain. \nA. Long tube insertion, B. Calcium pentonthenate, C. Laporotomy and exploration, D. Peristaltic stimulants', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Most patients develop a transient ileus after a major abdominal operation. Most of these cases resolve within 3 to 5 days.\nConditions like-extensive operative manipulation, major small bowel injury, heavy narcotic use, intraabdominal infection and pancreatitis - can prolong the ileus to 5 to 7 days. Ileus prolnged beyond this period is viewed with suspicion.\n\n\nManagement of post op. ileus\n\nThe essence of treatment is prevention, with the use of nasogastric suction and restriction of oral intake until bowel sounds and passage of flatus return.\nElectrolyte abnormality, if any is corrected.\nA battery of laboratory tests are conducted to look for primary cause, which if found is treated.\n"If paralytic ileus is prolonged and threatens life, a laparotomy should be considered to exclude a hidden cause and facilitate bowel decompression" - Bailey', 'role': 'assistant'}]