CO2: Results and Values (Bicarbonate, Carbon Dioxide, Total Carbon Dioxide, HCO3-, "Bicarb", T CO2, CO2 Content)

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CO2

Alternate Names : Bicarbonate, Carbon Dioxide, Total Carbon Dioxide, HCO3-, "Bicarb", T CO2, CO2 Content

CO2 | Preparation & Expectations | Results and Values

What do the test results mean?

The normal value for CO2 in the blood is 23 to 29 mEq/L. Most of the carbon dioxide in the blood is in the form of bicarbonate. Either term can be used. The lungs and kidneys control the amount of bicarbonate in the blood. This keeps the blood from becoming too acidic. In order for a person to live, he or she must have neither too much acid nor too much base in the blood.

Carbon dioxide or bicarbonate can be too high or too low in the following conditions:

Kidney problems

Breathing or lung problems

Poisonings or drug overdoses

Severe diarrhea

Uncontrolled diabetes

Severe dehydration

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CO2: Preparation & Expectations

Author: David T. Moran, MD
Reviewer: Melinda Murray Ratini, DO
Date Reviewed: 06/04/02

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