Calculates anion gap as sodium minus chloride and bicarbonate.
Formula
value = sodium - chloride - bicarbonate
What this calculator does
Calculates anion gap as sodium minus chloride and bicarbonate.
Clinical use
Interpret against the analyser- and population-specific reference interval; albumin and other unmeasured ions affect the result.
Important limitations
Do not mix values from different samples or laboratory methods.
References
- Hughes D et al. Harmonising reference intervals for calculated serum osmolality, anion gap and albumin-adjusted calcium.