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': 'Atropine as preanesthesia has all effects except – \nSelect and explain. \nA. Decrease secretion, B. Bronchoconstriction, C. Prevent bradycardia, D. Prevent hypotension', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The main aim of anticholinergics (atropine or hyoscine) as the anaesthetic medication is to prevent vagal bradycardia and hypotension (which occur reflexly due to certain surgical procedures), and prophylaxis of laryngospasm which is precipitated by respiratory secretions.\nHyoscine, in addition, produce amnesia and antiemetic effect.', 'role': 'assistant'}]