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': 'Newborns as compared to adults eliminate lidocaine: \nSelect and explain. \nA. More rapidly, B. More slowly, C. Variable, D. Equally fast', 'role': 'user'}, {'content': "Answer: B \nExplanation: Newborn infants have immature hepatic enzyme systems and hence prolonged elimination of lidocaine, bupivacaine, and ropivacaine. Ref: Miller's anesthesia-7th ed, Chapter 30.", 'role': 'assistant'}]