CO2 content

CO
₂ content (also known as "Total CO
₂") is a blood test that usually appears on a "Chem 19" or an electrolyte panel. The value measures the total dissolved Carbon dioxide (CO
₂) in blood. It is determined by combining the Bicarbonate (HCO⁻
₃) and the partial pressure of CO
₂ multiplied by a factor which estimates the amount of pure CO
₂ that is dissolved in its natural form (usually 0.03).^{[citation needed]}

One given reference range is 24–32 mEq/L.^[1]