Method Name
Spectrophotometry
Aliases
Carboxyhemoglobin; Carbon Monoxide Level; COHgb; Carboxy Hgb, Carboxyhemoglobin
Specimen Required
one green top tube (blood gas sample also acceptable for testing)
Specimen Minimum Volume
1.0 mL of blood
Specimen Stability Information
Coordinated delivery and testing with the Respiratory Therapy Department. Stability – 24 hours @ room temperature
Special Instructions
Specimen is drawn by the Laboratory and tested by the Respiratory Therapy Department.
Performing Laboratory
as ordered. Turn around time is 4 hours.
Reference Values
Non-smoker: < 1.5% nSmoker: 1.5 -5.0%