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Test Name:
Carbon Dioxide, Serum or Plasma
- SBMF No:
29224 - Performance Lab Name:
Automated Lab - Test Mnemonic:
CO2- - ABN:
Not required - CPT Code:
82374 - LOINC Code:
2028-9 - Also Known As:
Bicarb (HCO3)
Bicarbonate
Carbon Dioxide Content
CO2 Content
Total CO2
TCO2 - Also See:
23058 Electrolyte Panel - Spec Type:
Serum or plasma - Spec Container:
Gold top (SST), Red top (serum), Light green top (PST), or Green top (lithium heparin) tube - Pref Vol:
1.0 mL - Min Vol:
0.5 mL - Fasting:
No - Spec Collect:
Routine venipuncture - Spec Process:
Serum sample tubes, clot 30 minutes
Promptly centrifuge 15 minutes
Immediately transfer serum or plasma to separate plastic tube
Properly centrifuged gel barrier tube sample does not require transfer of specimen to separate tube - Spec Store Transport:
Refrigerated - Spec Stability:
3 days refrigerated (2-8°C) - Methodology:
Ion-selective Electrode (ISE) - Clinical Significance:
Refer to:
- Reference Range:
21-29 mEq/L - Critical Low Value:
14 mEq/L - Critical High Value:
41 mEq/L - Day Run:
Sun-Sat (daily) - Time Run:
As received - Time Reported:
4 hours - Test Type:
GAS-LYTE
