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': 'Polytrauma in paediatric age group most common feature is \nSelect and explain. \nA. Hypothermia, B. Hypovolemic shock, C. Hypotension, D. Hypoxemia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer- B. Hypovolemic shockDue to the greater physiological capacity and ability ofchildren to compensate for fluid loss, hypotension is a very late and ominous sign of hypovolaemic shock.', 'role': 'assistant'}]