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: Pharmacology
[{'content': 'Lithium toxicity is treated by following methods EXCEPT: March 2004 \nSelect and explain. \nA. Acidification of urine, B. Increased hydration, C. Sodium bicarbonate, D. Hemodialysis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A i.e. Acidification of urine', 'role': 'assistant'}]