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HelpTest Code CO Carboxyhemoglobin, Whole Blood
Specimen Volume
Varies
Preferred Specimen
Green No Gel Tube (GNG)
Specimen Handling Instructions
Specimen does not require refrigeration or ice.
DO NOT open tube.
Transport
Routine courier pick-up
Cutoff Time
None
Department
Chemistry
Methodology
Spectrophotometry
Stat Turn-around Time
30 Minutes
Routine Turn-around Time
1 Day
Reference Ranges
Non-smokers: 0.5-1.5 % Smoker’s range: 4-9% Critical range: >20% Headache/dizziness: 10-30% Coma: 50-60% Death: >60%