Acid-base tool
Anion Gap Calculator
Fast bedside calculation for serum anion gap and albumin-corrected anion gap to support metabolic acidosis assessment.
Calculator
Type
Bedside
Use
Visible
Guardrails
Clinical Tools
Workbench layout
Calculate first, then interpret the result in context. Assumptions, limitations, and clinical guardrails stay visible beside the tool.
Anion gap
12
Formula: Na - (Cl + HCO3)
Albumin-corrected
12
Adds 2.5 for every 1 g/dL albumin below 4
Interpretation
Normal anion gap
Interpret in context of lactate, ketones, and renal failure risk.