This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Initial Assessment, Subject name: Surgery
[{'content': 'Which of the following conditions needs emergency endotracheal intubation? \nSelect and explain. \nA. GCS<7, B. Tension pneumothorax, C. Cardiac tamponade, D. Bleeding gastric ulcer', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., GCS < 7 o See above explanation", 'role': 'assistant'}]