This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET 2019, Subject name: Anaesthesia
[{'content': 'Drug that does not causes cardiac depression:- \nSelect and explain. \nA. Propofol, B. Ketamine, C. Etomidate, D. Thiopentone', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Drug Action Thiopentone Decreases systemic vascular resistance, |BP,|HR,myocardial depression Propofol Decreases systemic vascular resistance,|BP, |HR, myocardial depression Etomidate CVS stable, adrenal insufficiency Ketamine In the presence of catecholamines it |HR, |BP', 'role': 'assistant'}]