Division of General Internal Medicine

Online Clinical Calculator

Anion Gap

Serum sodium level (Na): mmol/L
(optional) Serum potassium level (K): mmol/L
Serum chloride level (Cl): mmol/L
Serum bicarbonate level (HCO3): mmol/L
 

Anion Gap = mmol/L
Normal Anion Gap:
Anion gap = (Na + K) - (Cl + [HCO3-])
(all units mmol/L)

General Internal Medicine
9200 W. Wisconsin Ave.
Milwaukee, WI. 53226
Last Update: 3/9/99. Developed by Charles Hu, Ron Kneusel & Gary Barnas M.D.
Comments to: barnas@mcw.edu