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': 'Patients comes with fracture femur in an acute accident, the first things to do is \nSelect and explain. \nA. Secure airway and treat the shock, B. Splinting, C. Physical examination, D. X-rays', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Secure airway', 'role': 'assistant'}]