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Catalog ID CO2 Carbon Dioxide

CPOE Test Name

CO2

Synonyms

CO2

Specimen Type

Plasma

Specimen Requirements

5 mL light green top tube (lithium heparin); light green cap microtainer acceptable; 3 mL blood

Causes for Rejection

Wrong container; insufficient quantity; improper labeling

Reference Values

20 – 31 mEq/L

Critical Values

Low: ≤10 mEq/L; High ≥40 mEq/L

Neonates:

Low: ≤15 mEq/L; High ≥40 mEq/L

 

Performing Lab

Core Laboratory, BI 2023 721-2120

Turn Around Time

Routine: 2-4 hrs.; Urgent/Emergent: 1 hr.

Methodology

Ion selective electrode

CPT / HCPCS Code

82374