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': 'A Patient has hypersensitivity to neostigmine. He has to undergo upper abdominal surgery. Muscle relaxant of choice is: \nSelect and explain. \nA. Pancuronium, B. Ropacuronium, C. Vecuronium, D. Atracurium', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D. AtracuriumAtracurium undergo spontaneous degradation in plasma called as Hoffman degradation.Atracurium is relaxant of choice if reversal agent is contraindicated.Other muscle relaxants:(mentioned in question) require reversal with neostigmine (but Ne can not use neostigmine due to hypersensitivity), so can not use in this patient', 'role': 'assistant'}]