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Test Code LAB4057 CARBON DIOXIDE (CO2; BICARBONATE)

Specimen Type

Preferred Sample: Lithium Heparin Tube (Mint Green Top, Dark Green Top)

Alternative Sample: Serum (SST, Gold, Corvac, Tiger, Red Top Tube)

 

Specimen Volume

1.0 mL

Minimum Volume

0.5 mL

Turnaround Time

STAT: 1 hour
Routine: 4 hours

Test Schedule

Daily and STAT

Sample Stability

Room Temperature: 2 Hours

Refrigerated: 3 Days

Frozen: 2 Weeks

Specimen Processing

Centrifuge ASAP, keep upright and do not remove stopper. Store and transport refrigerated.

Method

Enzymatic (Alinity c)

tCO2 calculation (ABL)

Reference Ranges

CO2, mmol/L
0 up to 28 Days 17 - 24
28 Days up to 2 Months 19 - 24
2 Months up to 2 Years 16 - 24
2 Years up to 60 Years 22 - 29
60 Years and older 23 - 31

Synonyms

Bicarbonate, tCO2, CO2

Test Components

C02, mmol/L.

LOINC Code

1963-8

IMO Code

IMO-PROC-30984860

CPT Codes

82374