CARBON DIOXIDE

Specimen Required
Draw blood in a SST. Centrifuge SST, do NOT remove cap, and send 1 full unopened SST (0.5 mL minimum) refrigerated in the original unopened tube. Do NOT aliquot specimen.

Alternate Specimen
Plasma: sodium or lithium heparin

Rejection Criteria
Poured off sample

Methodology
Spectrophotometry

Stability
Room Temperature: 48 hours; Refrigerated: 72 hours; Frozen: 30 days

Reference Range
19-30 mmol/L

Performed
Monday-Saturday

Turnaround Time3-5 days
Test CodeCO2
CPT-4 Code (s)
82374
LOINC Codes
Carbon Dioxide   2028-9  

Warde
Medical
Laboratory