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': "In Volkman's ischemia, surgery should be done; \nSelect and explain. \nA. Immediately, B. After 6 hours, C. 24 hours, D. 72 hours", 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Immediate', 'role': 'assistant'}]