Carbon Dioxide

Test Code
CO2


Preferred Specimen
1 full unopened spun gel barrier tube


Minimum Volume
0.5 mL


Other Acceptable Specimens


Heparinized plasma




Instructions
Do not open tube


Transport Container
1 full unopened spun gel barrier tube


Transport Temperature
Ambient


Specimen Stability
 
Ambient: 12 hours
Refrigerated: 72 hours


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Anticoagulants other than heparin • Red-top tube (no gel)


Methodology
Spectrophotometry (SP)

Setup Schedule
24/7


Report Available
Same day


Limitations
Proper specimen collection and processing are critical for reliable testing.


Reference Range
21-30 mmol/L


Clinical Significance
Measurements are used in the diagnosis and treatment of numerous potentially serious disorders associated with changes in body acid-base balance.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.