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: Unknown
[{'content': 'Polytrauma patient back examination - \nSelect and explain. \nA. Log roll, B. Barrel role, C. Chin lift, D. None', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e.,Log roll Log roll o Once the patient has been evaluated anteriorly, a log roll should be performed to inspect the back. o One member of the team is responsible for maintaining in-line spinal stabilization (usually the anesthetist when the patient is intubated). o Three other trained staff hold the patient steady through the turn.", 'role': 'assistant'}]