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': 'The clinically relevant dose of neuromuscular blocker required for clinically useful relaxation corresponds to:- \nSelect and explain. \nA. ED50, B. ED75, C. ED95, D. ED25', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The effect of neuromuscular blocking drugs is measured as the depression of adductor muscle contraction (twitch) following electrical stimulation of the ulnar nerve. The value is compared with a control value obtained before injection of the drug. According to Miller, potency of a NMBD is best described as the effective dose - "The dose of a neuromuscular blocking drug required to produce an effect (e.g., 50%, 90%, or 95% depression of twitch height, commonly expressed as ED50, ED90, and ED95, respectively". Thus, the ED95 is the amount of NMBD required to reduce twitch height by 95% i.e . clinically useful relaxation', 'role': 'assistant'}]