Estimated serum osmolality from sodium, glucose, and BUN
When to use it
Use to calculate expected serum osmolality and compare with measured values for osmolar gap.
Category
Electrolytes & Acid-Base
References
Fazekas AS et al. Evaluation of 36 formulas for calculating plasma osmolality. Intensive Care Med. 2013;39:302-8. PMID: 23081685
About NephroMind
This calculator is part of NephroMind, a free clinical decision-aid platform from the Arab Society of Nephrology and Renal Transplantation (ASNRT) — over 128 bedside nephrology calculators plus a renal drug-dosing database, coded by a practicing transplant nephrologist.