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': 'The ideal muscle relaxant used for a neonate undergoing poo-enterostomy for biliary atresia is: \nSelect and explain. \nA. Atracurium, B. Vecuronium, C. Pancuronium, D. Rocuronium', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Atracurium In this case a muscle relaxant is required whose metabolism has nothing to do with liver (preferabely) & it should not be excreted through bile. The straight forward answer is atracurium/cisatracurium as these are inactivated in plasma by spontaneous non enzymatic degradation (Hoffman elimination) independant of hepatic or renal function and biliary or urinary exceretion.', 'role': 'assistant'}]