CO2 content

CO2 content (also known as "Total CO2") is a blood test that usually appears on a "Chem 19" or an electrolyte panel. The value measures the total dissolved Carbon dioxide (CO2) in blood. It is determined by combining the Bicarbonate (HCO3-) and the partial pressure of CO2 multiplied by a factor which estimates the amount of pure CO2 that is dissolved in its natural form (usually 0.03).