Name: Carbon Dioxide
Test Name: Carbon Dioxide
Health Link Test Code: CO2
LIS Test Code: CO2
CPT Code(s): 82374
Included In: Electrolytes Panel, Basic Metabolic Panel, Comprehensive Metabolic Panel
Methodology: PEP Carboxylase
Days Performed: Daily, 24 hours.
In-Lab Turnaround Time: 4 hours.
Stat In-Lab Turnaround Time: 1 hour.
Collection Container: Green cap with yellow ring (PST)
Also Acceptable: Green top, Red cap with yellow ring (SST), Red top
Tube must be at least one quarter full.
Collection Volume: 1 mL
Pediatric Collection Volume: 0.5 mL
7 days unopened
2 days if previously opened
Sample Analyzed: Plasma or serum
Testing Volume: 0.5 mL
Pediatric Testing Volume: 0.2 mL
Centrifuge. If a complete barrier has not formed, transfer cell-free plasma/serum to plastic vial. Tube or plastic vial must be 25% full and capped. Refrigerate.
Transport specimen to the laboratory. Transport with coolant pack if coming from clinic location.
8 days and up: 22-29 mmol/L
Interpretation Type: Reference Interval