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Test Code CO2 Carbon Dioxide (CO2)

Performing Laboratory

ChristianaCare:

  • Newark Campus
  • Middletown Campus
  • Helen Graham Cancer Center
  • Wilmington Campus

Methodology

Enzymatic

Reference Values

24-32 mmol/L

Critical values (automatic call-back):  <10 mmol/L or >45 mmol/L

Specimen Requirements

Container/Tube:  Preferred: 4.5 mL Lithium Heparin (Mint Green top PST Gel) tube

Acceptable: 5.0 mL SST (Gold top) tube or 6.0 mL Serum (Red top) tube

Specimen:  Full tube
Collection Instructions:  Avoid exposure of specimen to atmosphere. For pediatrics, draw blood in a 0.5-mL green-top MICROTAINER®.
Note:  Label tube with patient’s full name and 1 additional unique patient identifier such as date of birth, medical record number, emergency ID number, or financial number. Date and time of draw, collector’s initials, and type of specimen are also required.

Day(s) Test Set Up

Monday through Sunday

Routine Turnaround Time:  8 hours

STAT Turnaround Time:  1 hour