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 (6): 653–9.doi:10.1067/mem.2001.119455. PMID 11719745.

Glasser L, et. al. Serum Osmolality and its applicability to drug overdose. Am. J. Clin. Path. 1973; 60:695.

Siervo M, Bunn D, Prado CM, Hooper L. Accuracy of prediction equations for serum osmolarity in frail older people with and without diabetes. The American Journal of Clinical Nutrition 2014;100(3):867-876. doi:10.3945/ajcn.114.086769.

Dr. Roy Purssell

Serum Osmolality/Osmolarity

sodium

glucose

ethanol

measured_serum

Calculates expected serum osmolarity, for comparison to measured osmolarity to detect unmeasured compounds in the serum.

Screens for toxic alcohols and more.

Serum Osmolality

The Serum Osmolality/Osmolarity calculates expected serum osmolarity, for comparison to measured osmolarity to detect unmeasured compounds in the serum.

Osmoles (Osm)

Glucose

Sodium

Ethanol (ETOH)

Winters' Formula

GAP Index for IPF

Anion Gap

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Calc Function