Laboratory Services
Carbon Dioxide (CO2)
Print this pageUpdated Test Information:
| Test Description |
Carbon Dioxide (CO2)
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|---|---|---|
| Synonym(s) |
CO2
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| Test ID |
CO2
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| General Information |
Evaluate the total carbonate buffering system in the body, acid-base balance. Interpretation requires clinical information and the other electrolytes.
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| Specimen Type |
Serum
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| Specimen Requirements |
SST
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| Alternate Specimen Type |
Red, Li-heparin plasma
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| Specimen Collection / Processing Instructions |
SST - Draw blood in gel-barrier tube and centrifuge. If red-top tube or green-top tube is used, centrifuge within 45 minutes of draw, remove the serum or plasma, and place in a transport tube and tightly stopper the tube. Maintain specimen in a tightly-stoppered tube until analysis.
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| Minimum Sample Volume |
1 mL
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| Pediatric Min. Volume (if applicable) |
500 uL
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| Additional Processing Details |
Maintain specimen in a tightly-stoppered tube until analysis.
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| Stability |
If tightly stoppered:
40 hrs at 15-25°C 7 days at 4-8°C 6 months at -20°C |
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| Unacceptable Specimen Conditions |
Improper collection and handling.
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| Methodology |
Enzymatic
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| Estimated TAT |
0-2 days
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| Testing Schedule |
Monday-Saturday
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| CPT Code(s) |
82374
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| Reference Range |
22-29 mmol/L
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| Performing Lab |
Incyte Diagnostics
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| LOINC Code(s) |
2028-9
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