CO2 (Bicarbonate)

The CO2 blood test measures the level of bicarbonate in your blood, which helps indicate your body's acid-base balance. Most of the carbon dioxide in your blood is in the form of bicarbonate.

Category: Metabolic Panel

Also known as: co2, bicarbonate, hco3, carbon dioxide, total co2, tco2

Reference range: 23–29 mEq/L (Source: ABIM)

Standard unit: mEq/L

High values may indicate

High CO2 (bicarbonate) levels may indicate metabolic alkalosis, prolonged vomiting, COPD, or Cushing syndrome.

Low values may indicate

Low CO2 (bicarbonate) levels may indicate metabolic acidosis, kidney disease, diabetic ketoacidosis, or chronic diarrhea.

Source: MedlinePlus, U.S. National Library of Medicine

Track your CO2 (Bicarbonate) over time with BloodId