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Test Code CO Carbon Monoxide (CO), Blood

Additional Codes

  • Expanse Test Name: Carbon Monoxide
  • Medinet Ref Code: CO
  • OV Code:BG*CO

Performing Laboratory

St. Lukes Hospital Laboratory

Methodology

Co-Oximetry

Specimen Requirements

Draw blood in a green-top (lithium heparin) tube(s) or a heparinized blood gas syringe(s), and send 1 mL of heparinized whole blood (Clotted blood is not acceptable.) at ambient temperature.

Reference Values

Nonsmoker:  0.5-1.5%
Smoker (1-2 packs/day):  4.0-5.0%

Smoker (>2 packs/day):  8.0-9.0%
Interfering Substances:

Methylene blue and sulfhemoglobin.

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

82375

Additional Information

 

 

Specimen Stability:Whole blood is stable for 4 weeks at ambient temperature and refrigerated at 2° C to 8° C for 4 weeks.