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: Anaesthesia
[{'content': 'Cerebral metabolism and O2 consumption are increased by – \nSelect and explain. \nA. Propofol, B. Ketamine, C. Atracurium, D. Fentanyl', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cerebral blood flow, metabolism, oxygen consumption and ICT all are increased by ketamine → ketamine is contraindicated in raised ICT.', 'role': 'assistant'}]