Physiology General physiology 614e4caa The normal range of serum osmolarity is A 350-375 B 200-250 C 270-285 D 300-320 High-Yield Explanation Normal serum osmolarity ranges from 275 to 295 mOsm/L It is used to monitor hyponatremia,and other conditions Reference : guyton and hall12 Ed pg no: 45,46,47