This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Traumatic Brain Injury, Subject name: Surgery
[{'content': "Prognostic factor in head injury - \nSelect and explain. \nA. Age of patient, B. Glasgow' coma scale, C. Mode of injury, D. Presence of facial trauma", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is \'b\' i.e., Glasgow coma scale Harrison writes- "In severe head injury, eye opening, the best motor response of the limbs, and verbal output have been found to be roughly predictive of outcome; these are summarized using the \'Glasgow coma scale\'. "Glasgow coma scale is used to determine the conscious level of the patient.A) Eye openingB) Verbal responseC) Motor responseSpontaneous - 4Oriented - 5Obeys commands - 6To Voice - 3Confused - 4Localises pain - 5To pain - 2Inappropriate word - 3Withdraws (pain - 4None - 1Incomprehensible sound - 2Flexion (pain) - 3 None - 1Extension (pain) - 2 None - 1o Ranges from 3 to 15o A score of 7 or less is classed as comao A score of 9 or more excludes coma', 'role': 'assistant'}]