Urine Anion Gap

Name: Urine Anion Gap
Creator: Daniel Diaz-Gil, MD
Keywords: nephrology, renal, urine, anion gap, RTA, renal tubular acidosis, metabolic acidosis, ammonium, NH4

Calculates urine anion gap to distinguish GI bicarbonate loss from renal tubular acidosis in hyperchloremic metabolic acidosis

Clinically Verified· 5 tests

For educational and informational purposes only. Verify all results before clinical application.

Urine Na *

mEq/L

Urine K *

mEq/L

Urine Chloride *

mEq/L

References

Batlle DC, Hizon M, Cohen E, Gutterman C, Gupta R. The use of the urinary anion gap in the diagnosis of hyperchloremic metabolic acidosis. N Engl J Med. 1988;318(10):594-599.[DOI]

Reviewed by Daniel Diaz-Gil, MD · Last updated March 2026

Medical disclaimer

This tool is for educational and informational purposes only. It is not a substitute for professional clinical judgment. Always independently verify results before making clinical decisions.

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