Test Code CO2 CARBON DIOXIDE
Additional Codes
LAB55
Performing Laboratory
Porter Hospital Laboratory
Specimen Requirements
Specimen Type: Blood
Container/Tube: Tiger top, serum gel
Also Acceptable: Green top (Lithium Heparin)
Specimen Volume: Full tube, submit 0.5 mL serum
Specimen Minimum Volume: 0.3 mL
Collection Instructions:
1. Send specimen in original tube.
2. If there is a delay in transport of >1 hour, centrifuge tube.
3. Unopened and Centrifuged samples are stable for:
• 8 hours at room temperature
• 2 days at 2 – 8ºC
Specimen Transport Temperature
Refrigerated
Test Classification and CPT Coding
82374
Test Schedule / Analytical Time / Test Priority / Turn Around Time
Daily / 24 hours / Available STAT / Routine - 4 hours
STAT - 60 minutes
Normal Reference Values
21-32 mEq/L
Critical Values
< 10 mEq/L