Medicine In hyponatremia following renal failure, serum sodium should be maintained at what levels ? A 120 mEq/L B 125 mEq/L C 130 mEq/L D 135 mEq/L 💡 Explanation In hyponatremia following renal failure, serum sodium should be maintained at what levels ? ✓ Correct Answer: A. 120 mEq/L