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
Newborns as compared to adults eliminate lidocaine: 
Select and explain. 
A. More rapidly, B. More slowly, C. Variable, D. Equally fast
B: More slowly
Answer: B: More slowly 
Explanation: Newborn infants have immature hepatic enzyme systems and hence prolonged elimination of lidocaine, bupivacaine, and ropivacaine. Ref: Miller's anesthesia-7th ed, Chapter 30.