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Test Code CRBXY Carboxyhemoglobin LAB56

Important Note

Samples collected for carboxyhemoglobin must be run within 30 minutes of collection. Please have the patient present at the lab to be drawn to ensure timely sample processing. 

Test Method

Photometry; ABL90 Flex Plus

Performance

Testing is performed Monday through Sunday.

Typically completed within 30 minutes after the specimen
arrives at the testing site.

Specimen Requirement

0.5 mL lithium heparin whole blood 

Useful For

Verifying carbon monoxide toxicity in cases of suspected
exposure.

Reference Values

Carboxyhemoglobin: 8.5-10.5 mg/dL

Nonsmoker: ≤ 3.0%

Smoker: < 9.0%

  • Critical Value: ≥  20.0%

CPT Code Information

82375 Chemistry: Carboxyhemoglobin (Carbon Monoxide);
Carboxyhemoglobin; quantitative

LOINC Code Information

20563-3 Carboxyhemoglobin/Hemoglobin.Total In Blood