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Calculated serum osmolality

Current versionAcid-base / renal·5 inputs·2 references

Based on Dorwart WV and Chalmers L (1975).

Pogosh offers this calculator when a case matches dehydration, diabetes, dka hhs, severe hyponatremia, toxic alcohols. It runs only when you press Calculate.

Decision support for clinicians — review before acting.

mEq/L
mg/dL
mg/dL
mg/dL
Runs only when you press Calculate. Values are not stored.

References

  1. Dorwart WV, Chalmers L. Comparison of methods for calculating serum osmolality from chemical concentrations, and the prognostic value of such calculations. Clin Chem. 1975;21:190-194. Search PubMed
  2. Purssell RA, Pudek M, Brubacher J, Abu-Laban RB. Derivation and validation of a formula to calculate the contribution of ethanol to the osmolal gap. Ann Emerg Med. 2001;38:653-659. Search PubMed

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