This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Orthopaedics
[{'content': 'In compartment syndrome, false sign is \nSelect and explain. \nA. Hypo aesthesia, B. Normal pulse rate, C. Oedema, D. Pain or stretching', 'role': 'user'}, {'content': "Answer: B \nExplanation: (B) Normal pulse rate # Classic features of ischaemia are the five Ps: Pain, Paraesthesia, Pallor, Paralysis and Pulselessness.> But it is criminal to wait until they are all present; the diagnosis can be made long before that.> The earliest of the 'classic' features are pain (or a 'bursting' sensation) and altered sensibility. Ski n sensation should be carefully and repeatedly checked.", 'role': 'assistant'}]