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': 'Action of which anesthetic agent is through NMDA receptors? \nSelect and explain. \nA. Xenon, B. NO, C. Succinylcholine, D. Etomidate', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Xenon Xenon It exes anaesthetic action by non competitive blockade of NMDA receptors. Xenon has been used as a general anesthetic. Xenon interacts with many different receptors and ion channels and like many theoretically", 'role': 'assistant'}]