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': 'Regarding adhesive intestinal obstruction, TRUE is - \nSelect and explain. \nA. Avoid surgery for initial 48-72 hours, B. Never operate, C. Operate after minimum 10 days of conservative treatment, D. Immediate operation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: There are three main measures in the t/t of acute intestinal obstruction. These are\n\n\nGastro intestinal drainage (Nasogastric suction)\nFluid and electrolyte replacement\nSurgery for relief of obstruction\n\n\nThe first two steps are always necessary prior to the surgical relief of obstruction.\nSurgical treatment is necessary for most cases of intestinal obstruction, but it should always be delayed until resuscitation is complete.\nThe timing of surgical intervention is dependent on clinical picture.\nThe classical clinical advice on a case of unrelieved intestinal obstruction is that "Sun should not both rise and set" i.e., the operative procedure should not be delayed beyond 24 hrs.\nBut, there are certain exceptions to this rule. In some cases operation is delayed in the hope of spontaneous resolution.\nIn adhesive intestinal obstruction, usually occurring after surgery the conservative management is continued upto 72 hours in the hope of spontaneous resolution. In these cases there is no pain or tenderness despite continued radiological evidence of obstruction.\nAlso know the four types of obstruction, where operation should be done as soon as possible these are\n\n\nStrangulation\nClosed loop obstruction\nColon obstruction\nEarly simple mechanical obstruction', 'role': 'assistant'}]