Anion gap (with albumin correction)
Serum anion gap, albumin-corrected gap, and delta-delta ratio.
Inputs
0 of 3mEq/L
mEq/L
mEq/L
Optional, for correction
When to use
- Any metabolic acidosis.
Pearls and pitfalls
- Normal range depends on your lab's analyzer; many use 3 to 11 mEq/L today.
- Each 1 g/dL fall in albumin lowers the gap by about 2.5 mEq/L.
Why use
Shows corrected gap and delta ratio in one place.
- where
- Na, Cl, HCO3
- Serum electrolytes, mEq/L
- Alb
- Albumin, g/dL
- AGc
- Albumin-corrected anion gap