Pediatrics Body composition and Acid base Balance c42f59d5 Calculate the plasma osmolality if serum Na+ is 130, glucose is 180 mg/dl, & BUN is 56, K+ is 5, cl- is 117. A 260 B 270 C 280 D 290 High-Yield Explanation * Normal plasma osmolality = 285 - 295 mosm/kg *