Anion Gap Calculator
Calculate anion gap for metabolic acidosis assessment
Medical Disclaimer
This calculator is for educational purposes only. Always consult a healthcare professional for medical advice and diagnosis.
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Anion Gap Calculation
About Anion Gap
The anion gap is a calculated value that helps identify the cause of metabolic acidosis.
Anion Gap Formula:
Anion Gap = Na+ - (Cl- + HCO3-)
Corrected for Albumin:
Corrected AG = AG + 2.5 × (4.5 - Albumin)
Interpretation:
- 8-16 mEq/L: Normal
- 17-20 mEq/L: Borderline elevated
- >20 mEq/L: Elevated
Clinical Significance:
- • Metabolic acidosis evaluation
- • Toxin ingestion assessment
- • Renal function evaluation
- • Treatment response monitoring
Limitations:
- • Affected by albumin levels
- • Laboratory variability
- • Multiple causes possible
- • Clinical context required
Professional Resources:
- • Nephrologist
- • Emergency physician
- • Critical care physician
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