This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Medicine
[{'content': 'In hyponatremia following renal failure sodium level should be maintained at - \nSelect and explain. \nA. I20meq/ml, B. 125 meq/ml, C. 130 meq/ml, D. 135 meq/ml', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Hyponatremia in CKD population is associated with increased moality, but the effect on renal outcome was unknown. ... Hyponatremia (serum sodium <135 mEq/L) was associated with excessive volume and volume depletion, measured as total body water by bioimpedance analysis, in diuretic users, but not in diuretic non-users. Ref Harrison20th edition pg 234', 'role': 'assistant'}]