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': 'Shoest acting non depolarizing neuromuscular blocker:- \nSelect and explain. \nA. Atracurium, B. Succinylcholine, C. Vecuronium, D. Mivacurium', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Fastest onset and shoest duration neuromuscular blocker = succinylcholine (onset = 30-45 sec) duration 5-6 minutes Fastest onset non depolarizing = rocuronium (onset = 75-90 sec). Rapacuronium is fastest acting bit not in clinical use. Rest all neuromuscular blockers onset of action = 3-5 minutes Shoest duration non depolarizing - mivacurium', 'role': 'assistant'}]