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  4. Anion Gap Calculator
Medical CalculatorMedical

Anion Gap Calculator

Calculate anion gap to help identify the cause of metabolic acidosis.

Updated 2024-12-153 min readCalzyra Health Team

Calculator

Enter your values below

Health CalculatorEvidence-Based

mEq/L

Serum sodium level

mEq/L

Serum chloride level

mEq/L

Serum bicarbonate level

Formula & Methodology

How this calculator works

Anion Gap = Na - (Cl + HCO3); Normal: 8-12 mEq/L

The anion gap is the difference between measured cations and anions, helping classify metabolic acidosis.

Frequently Asked Questions

Common questions about this calculator

Medical Disclaimer

Medical calculators are clinical decision support tools. They should be used by qualified healthcare professionals and do not replace clinical judgment.

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References

WHO GuidelinesCDC ResourcesAHA Recommendations