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What is a normal CO2 level?

Published in Medical Test Values 1 min read

A normal CO2 level in the blood typically ranges from 23 to 29 milliequivalents per liter (mEq/L) or 23 to 29 millimoles per liter (mmol/L).

While this range serves as a general guideline, it's important to remember that normal values can vary slightly depending on the specific laboratory performing the test. Therefore, it's always best to discuss your specific test results with your healthcare provider to understand what they mean for you. They can interpret the results in the context of your overall health and medical history.

Factors that can affect CO2 levels include:

  • Kidney function: The kidneys play a crucial role in regulating bicarbonate (a form of CO2) levels in the blood.
  • Lung function: The lungs help to eliminate CO2 from the body.
  • Metabolic disorders: Certain metabolic conditions can affect CO2 production or elimination.
  • Medications: Some medications can influence CO2 levels.

Always consult your doctor for proper interpretation of your test results.

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