Carbon Dioxide (CO2) Blood Test-Introduction, Test Result, Unit, Reference Range, Test Methods, Clinical Significance, and Keynotes
Table of Contents
The ‘Carbon Dioxide (CO2) Blood Test’ measures dissolved carbon dioxide in the blood. Additionally, it evaluates the body’s acid-base equilibrium. Moreover, clinicians use it to assess respiratory and metabolic functions. Consequently, it helps guide treatment for acid-base disorders.
Test results indicate the concentration of CO₂ in the blood sample. Often, the result helps determine a patient’s metabolic status. Furthermore, abnormal levels suggest respiratory or metabolic imbalances.
Results are reported in millimoles per liter. Typically, laboratories use mmol/L as the unit.
Normal CO₂ levels usually range from 22 to 29 mmol/L. However, reference ranges may vary between laboratories. Consequently, clinicians interpret results in context.
Laboratories use automated analyzers to measure CO₂. Moreover, they apply enzymatic or electrode methods for detection. Additionally, the tests use spectrophotometric techniques for accuracy.
The CO₂ test evaluates the patient’s acid-base status. Furthermore, it identifies respiratory and metabolic dysfunction. Moreover, abnormal CO₂ levels may indicate lung disease—consequently, the test aids in managing treatment plans.
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