This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous General Anesthesia, Subject name: Anaesthesia
[{'content': 'Intravenous anaesthetic causing supression of steroid synthesis: \nSelect and explain. \nA. Etomidate, B. Thiopentone, C. Ketamine, D. Propofol', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref: Ajar Yadav, Short Textbook of Pediatrics 1st edition. Miller Textbook of Anaesthesia. 6th edition.Explanation:EtomidateNot easily availableCVS- Cardiostable agentNo respiratory depressionSide EffectsEndocrine - Transiently inhibits the enzymes involved in cortisol & aldosterone synthesisLong term infusion leads to Adrenocortical supressionNausea & Vomiting - Incidence 40% (Highest among all intravenous anesthetics)Myoclonus (30 - 60%)Painful injectionThrombophlebitisVitamin C deficiencyUsesIV anesthetic of choice for Aneurysm surgery and patients with cardiac diseaseIt is rarely used these days.', 'role': 'assistant'}]