This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Psychiatric Illness, Subject name: Pharmacology
[{'content': 'What is the therapeutic level of lithium used in acute mania? \nSelect and explain. \nA. 0.5-0.8 meq/L, B. 0.8 -1.2 meq/L, C. 1.0-1.5 meq/L, D. 1.5-2.0 meq/L', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Therapeutic level of lithium used in acute mania is 0.8-1.2 meq/L NOTE: Safe range: 0.6 and 1.5 mEq/L. Acutely manic or hypomanic patients: 1.0-1.5 mEq/L Long-term prophylaxis: 0.6-1.0 mEq/L', 'role': 'assistant'}]