Test Catalog
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Test Name: Carboxyhemoglobin
Test Code: COHB
Cerner Synonyms: Carboxyhemoglobin/Total Hemoglobin, Carboxyhemoglobin and Total Hb
Turn around time: Analyzed within 1 hour of receipt, 24/7.
Collection Container: Lavender
Alternate Collection Container(s): Heparinized Syringe
Sample Type: Whole Blood EDTA
Minimum Volume: 3.0 mL
Collection and Shipping Requirements: Refrigerate. Send on ice pack.
Method: Co-oximetry, Radiometer ABL800
Notes:
Heavy smokers may show up to 0.10 of Hb as carboxyhemoglobin.
Elevated carboxyhemoglobin is automatically reported on any blood gas order, if carboxyhemoglobin is present.
Hydroxycobalamin, given to smoke exposure victims, results in marked negative bias in carboxyhemoglobin.
