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CARBON MONOXIDE, BLOOD
Number 535
CPT Code 82375
Alias CARBOXYHEMOGLOBIN, CO
Specimen Container Lavender Top
Specimen Type Whole Blood EDTA
Turn Around Time 
Days Performed 
Reference Range Nonsmoker: <2%; Smoker: <9%
Alternate Specimen 
Volume 7 mL Whole Blood
Stability Ambient N/A
Stability Refrigerated Preferred
Stability Frozen N/A
Patient Preparation 
Methodology 

Co-oximetry

Limitations 

Carbon monoxide levels are of limited value in testing for smoking, since it is cleared rapidly. The half-life of carboxyhemoglobin in individuals with normal cardiopulmonary function is one to two hours. Urinary cotinine, if available, is preferable as a test for tobacco use. Arterial blood gases may be of limited value in treatment decisions for carbon monoxide poisoning.

Rejection Criteria 

Clotted specimen

Additional Instructions 
Performing Laboratory Reference Laboratory
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COVID-19 Testing Guidance

Primex Clinical Laboratories strives to provide clients with quality testing services to better support patient health. With the ongoing pandemic, COVID-19 testing has become high in demand yet testing supplies are limited.

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COVID-19 Testing Guidance

Primex Clinical Laboratories strives to provide clients with quality testing services to better support patient health. With the ongoing pandemic, COVID-19 testing has become high in demand yet testing supplies are limited.

Read More