CARBOXYHEMOGLOBIN/METHEMOGLOBIN, BLOOD

Additional Codes

Software	Test Code
Label Text	COMET
EPIC	LAB10218

Performing Laboratory

NorDx Laboratories

Useful For

Determining the extent of carbon monoxide poisoning, assessing the effect of smoking on the patient, and in working up persons exposed to fires and smoke inhalation.
Includes Carboxyhemoglobin and Methemoglobin.

Method Name

Co-oximetry

Reference Values

Carboxyhemoglobin:

Heavy smokers : 5.0 – 9.0% saturation

Smokers: 1.5 – 5.0% saturation

Nonsmokers : Less than 1.5% saturation

Methemoglobin: 0.1 - 1.5% saturation

Days and Times Test Performed

Monday through Sunday

Report Available

1 Day

Profile Information

Individual Test Description
CARBOXYHEMOGLOBIN, BLOOD
METHEMOGLOBIN

Specimen Type

Whole Blood

Preferred Container

Dark Green Top Tube (Lithium Heparin)

Preferred Volume

Whole Blood: (Dark Green Top Tube (Lithium Heparin)) – Tube must be full at time of collection.

Specimen Collection and Handling

1. Draw blood in a dark green-top Lithium Heparin tube (Sodium Heparin is acceptable).

2. Send the entire tube of whole blood.

3. Avoid exposure of specimen to atmosphere. DO NOT OPEN TUBE.

Maine Medical Center Collection:

Draw blood in either a dark green-top Lithium Heparin tube (Sodium Heparin is acceptable) OR a heparinized syringe. DO NOT OPEN TUBE.

Blood gas syringe Test can be performed as an add-on only if specimen has remained tightly stoppered.

Specimen Stability Information

Specimen Type: Whole Blood

Refrigerated: 2 Weeks

Room Temp: 2 Weeks

Note: Only if specimen has remained tightly capped for proper storage.

Add On Capable

Not Permitted

Advance Beneficiary Notice Requirements

No ABN Required

CPT Code Information

CPT Code	CPT Description	CPT Disclaimer
82375	Carboxyhemoglobin, Quantitative
83050	Hemoglobin: Methemoglobin, Quantitative

Performing Laboratory Location