This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuromuscular Blocker, Subject name: Anaesthesia
[{'content': 'All of the following muscle relaxants are metabolized in liver except: \nSelect and explain. \nA. Pancuronium, B. Vecuronium, C. Rocuronium, D. Mivacurium', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Mivacurium is metabolized by pseudocholinesterase present in plasma. Two neuromuscular blocker metabolized by pseudocholinesterase- succinyl choline and mivacurium Most aminosteroid metabolized by hepatic and renal pathway. atracurium and cisatracurium are metabolized by Hoffman degradation and nonspecific ester metabolism.', 'role': 'assistant'}]