Urine Anion Gap
Helps localize the cause of a normal-anion-gap metabolic acidosis.
What is Urine Anion Gap?
Helps localize the cause of a normal-anion-gap metabolic acidosis. Urine Anion Gap is intended for use in: Adults.
How to Use the Urine Anion Gap Calculator
- Enter Urine sodium in mEq/L.
- Enter Urine potassium in mEq/L.
- Enter Urine chloride in mEq/L.
- Click Calculate to see your result and interpretation.
Formula & Version
This calculator uses formula version 1.0, last reviewed September 2026.
Clinical Considerations & Limitations
- Only interpretable in the setting of a concurrent normal-anion-gap metabolic acidosis; less reliable if urine sodium is very low.
References
- Goldstein MB et al., Am J Nephrol 1986;6:274-278
Frequently Asked Questions
What is Urine Anion Gap?
Helps localize the cause of a normal-anion-gap metabolic acidosis.
Who is Urine Anion Gap intended for?
Adults. Always confirm applicability to your specific patient before use.
What are the limitations of Urine Anion Gap?
Only interpretable in the setting of a concurrent normal-anion-gap metabolic acidosis; less reliable if urine sodium is very low.
What formula or reference does Urine Anion Gap use?
Goldstein MB et al., Am J Nephrol 1986;6:274-278
Is Urine Anion Gap a diagnosis?
No. Urine Anion Gap produces a score or estimate to support clinical decision-making — it is not a diagnosis and should be interpreted alongside full clinical judgement.