Acute hyponatremia becomes symptomatic at what level of serum sodium concentration?: (A) <130mEq/L, (B) <125 mEq/L, (C) <120 mEq/L, (D) <115 mEq/L
Answer is C. Ans. is 'c' i.e., <120 mEq/L Acute Hyponatremia* Cases of acute hyponatremia are defined as those developed in < 48 hours of duration.* These patients are usually symptomatic if hyponatremia is severe i.e. < 120mEq/L.* These patients are at greatest risk of development of neurologic symptoms but rarely develop demyelination.* Sodium levels in these patients should be corrected to relatively higher levels quickly.