This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Intravenous Anesthetic Agents, Subject name: Anaesthesia
[{'content': 'ketamine can be used in all of the situations except \nSelect and explain. \nA. Status asthamaticus, B. For analgesia and sedation, C. Obstetric haemorrhage, D. Ischemic hea disease', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ischemic hea disease is contraindicated in ketamine. Cardiovascular - Stimulating effects secondary to direct stimulation of the sympathetic nervous system. thus increasing blood pressure and hea rate it also has direct myocardial depressant effect.', 'role': 'assistant'}]