Test Details
Mnemonic
CO2
Ordering Code
3718300
CPT-4 Code(s)
82374
Specimen Information
Collect
Serum separator tube (SST)
Specimen Preparation
Centrifuge Serum separator tube (SST), do NOT remove cap and send 1 full unopened Serum separator tube (SST) refrigerated in the original unopened tube. Do NOT aliquot specimen.
Alternate Specimen
Plasma: Green sodium or lithium heparin
Minimum Volume
0.5 mL
Transport Temperature
Refrigerated
Rejection Criteria
Poured off sample, red top, plasma not drawn with heparin
Stability
Room temperature: 48 hours
Refrigerated: 72 hours
Frozen: 30 days
Refrigerated: 72 hours
Frozen: 30 days
Methodology
Spectrophotometry
Reference Range
20-32 mmol/L
High altitude reference range: 18-30 mmol/L
High altitude reference range: 18-30 mmol/L
Performing Laboratory
Quest Valencia
New York DOH Approval Status
Yes