This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fluids and Electrolyte Imbalance, Subject name: Medicine
[{'content': 'All are used for management for hypernatremia except? \nSelect and explain. \nA. 5% dextrose in water, B. N/2 in 5% dextrose, C. Nil by mouth, D. Indomethacin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Hypernatremia is treated with free water intake by month or NG tube if patient is not obtunded. Dilute hypotonic fluids like 5% dextrose in water and N/2 in 5% water are given to decrease serum sodium at a rate of 0.3 mmol/Hr. Drug that stimulate vasopressin like chlorpropamide / indomethacin / carbamazepine and clofibrate will also increase water absorption from collecting duct and reduce serum sodium.', 'role': 'assistant'}]