In This Section

Available Tests

  • CO2 (Bicarbonate)

CO2 (Bicarbonate)

Tube Type

  Test ID   LAB55
  EPIC Order   CO2 TOTAL
  CPT Code(s)   82374
  Group/Individual Test   Individual
  Laboratory   Core Laboratory
  Tube Station   Routine 30; STAT 888
  Specimen Routine: 1 mL blood/serum separator tube/gold top/red top acceptable
  micro: 200 µL blood/serum separator bullet/gold top/red top



6 hours
Room Temp: 24 hours (unopened)
Refrigerated: 3 days
Frozen: 1 month
  Availability 24 Hours/Day
  Turnaround Time   STAT 1 hr., Routine 2 hrs.
  Reference Range Normal: 22-30 mmol/L
  Critical: <12 mmol/L or >40 mmol/L

Reviewed by Karen Hrischuk on December 13, 2019

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514