Carboxyhemoglobin

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%