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: Unknown
[{'content': 'Prolongd apnea may occur in patients with a genertically determined abnormal variant of cholinesterase following intravenous administration of \nSelect and explain. \nA. Succinylcholine, B. Tubocurarine, C. Mivacurium, D. Succinylcholine or mivacurium', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Both succinylcholine and mivacurium are completely and rapidly eliminated by plasma cholinesterase. Other nondepolarizing neuromuscular blockers, such as tu\xadbocurarine, pancuronium, and atracurium, are elimi\xadnated by renal or hepatic mechanisms or by spontane\xadous hydrolysis (atracurium). Patients with genetically determined atypical cholinesterase may be detected by measuring the inhibition of cholinesterase by dibu\xadcaine, a local anesthetic. Dibucaine inhibits the normal enzyme about 80%, but the abnormal variant is inhib\xadited only 20%.', 'role': 'assistant'}]