Carboxyhemoglobin

Label Mnemonic:	CHB
Epic code:	LAB56
Downtime form:	A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery

Critical Care - Relocated to Core Laboratory
6240 RCP
356-3527

Specimen(s):

Whole Blood

Collection Medium:

Heparinized syringe or Green top tube (Na Heparin)

Minimum:

0.5 mL in Lithium/Sodium Heparin syringe or,
1 mL whole blood in Lithium/Sodium Heparin green top tube

Delivery Instructions:

Deliver to laboratory within 1 hour of collection.

Testing Schedule:

24 hrs/day, 7 days a week, including holidays.

Turn Around Time:

10 minutes (upon receipt in laboratory)

Reference Range:

Non-smoker    1 - 3%
Smoker        4 - 8%

Critical Value:  >10%

Comments:

Can be ordered with blood gases (0.5 mL blood required); all needles must be removed from the syringe before delivery.

This test is also performed in the Iowa River Landing (IRL) clinical laboratory (for specimens drawn at that site).

Methodology:

Oximetric

CPT Code:

82375