Serum osmolality calculator: Difference between revisions

(Create calculator page with correct naming convention)
 
(Add Fluids, Electrolytes, and Nutrition category)
 
Line 1: Line 1:
{{Serum_Osmolality_Calculator}}
{{Serum_Osmolality_Calculator}}


[[Category:Fluids, Electrolytes, and Nutrition]]
[[Category:Medical calculators]]
[[Category:Medical calculators]]
[[Category:Pages using gadget Calculator]]
[[Category:Pages using gadget Calculator]]

Latest revision as of 17:27, 21 March 2026

Calculated Serum Osmolality

Calculated Serum Osmolality
Parameter Value
Sodium (mEq/L)
BUN (mg/dL)
Glucose (mg/dL)
Calculated Osm mOsm/kg
Interpretation
275–295 Normal serum osmolality.
  • Osmolal gap = Measured Osm – Calculated Osm. Gap >10 suggests unmeasured osmoles (toxic alcohols, mannitol, etc.).
References
  • Formula: Osm = 2×Na + BUN/2.8 + Glucose/18
  • Purssell RA, et al. Derivation and validation of a formula to calculate the contribution of ethanol to the osmolal gap. Ann Emerg Med. 2001;38(6):653-659. PMID 11719745.
Authors: