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| Osmolal Gap Calculator |
The EBMcalc module Osmolal Gap Calculator is available in EBMcalc Complete Edition.
This calculator yields the following results:
- Calculated Osm
- Osmolal Gap
Equation parameters include:
- Serum Na
- Serum Glucose
- Serum BUN
- Serum Ethanol
- EOF
- Measured Osm
References
- Bhagat CI, Garcia-Webb P, Fletcher E, et al. Calculated vs measured plasma osmolalities revisited. Clin Chem. 1984 Oct;30(10):1703-5. PubMed ID: 6537784
- Purssell RA, Pudek M, Brubacher J, et al. Derivation and validation of a formula to calculate the contribution of ethanol to the osmolal gap. Ann Emerg Med. 2001; 38:653. PubMed ID: 11719745
- Carstairs SD, Suchard JR, Smith T, et al. Contribution of serum ethanol concentration to the osmol gap: a prospective volunteer study. Clin Toxicol (Phila). 2013 Jun;51(5):398-401. PubMed ID: 23641935
- Liamis G, Filippatos TD, Liontos A, Elisaf MS. Serum osmolal gap in clinical practice: usefulness and limitations. Postgrad Med. 2017 May;129(4):456-459. PubMed ID: 28306366
- Lepeytre F, Ghannoum M, Ammann H, et al. Formulas for Calculated Osmolarity and Osmolal Gap: A Study of Diagnostic Accuracy. Am J Kidney Dis. 2017 Sep;70(3):347-356. PubMed ID: 28578820
- Nguyen MK, Song L, Kao L, et al. Is the Osmolal Concentration of Ethanol Greater Than Its Molar Concentration? Front Med (Lausanne). 2020 Jan 8;6:306. PubMed ID: 31970159
- Khajuria A, Krahn J. Osmolality revisited--deriving and validating the best formula for calculated osmolality. Clin Biochem. 2005 Jun;38(6):514-9. PubMed ID: 15885229
Legal Notices and Disclaimer All information contained in and produced by the EBMcalc system is provided for educational purposes only. This information should not be used for the diagnosis or treatment of any health problem or disease. THIS INFORMATION IS NOT INTENDED TO REPLACE CLINICAL JUDGMENT OR GUIDE INDIVIDUAL PATIENT CARE IN ANY MANNER. EBMcalc is NOT a medical device. Click here for full notice and disclaimer. |