CARBON DIOXIDE

Test Code

CO2

Alias/See Also

Bicarbonate

CPT Codes
82374

Preferred Specimen

Gold Tube (SST)

Patient Preparation
None

Minimum Volume

1mL (2mL optimal)

Other Acceptable Specimens

Green Tube (Lithium Heparin)

Instructions

Centrifuge for complete separation of serum or plasma and red cells.

Keep sample capped; do not leave uncapped

Transport Container

GOLD Tube

Transport Temperature

Room Temperature

Specimen Stability

2-8°C up to several hours

Methodology
Enzymatic

Setup Schedule

Daily, as received

Report Available

STAT: <60 minutes
Routine: <4 hours

Reference Range

Male/Female Ages >=0 Days - <6 Days: Normal Range: 13-22 meq/L Critical Low : <=11 meq/L Critical High : >=39 meq/L Male/Female Ages >=6 Days - <6 Years: Normal Range: 20-28 meq/L Critical Low : <=11 meq/L Critical High : >=39 meq/L Male/Female Ages >=6 Years - <60 Years: Normal Range: 21-31 meq/L Critical Low : <=11 meq/L Critical High : >=39 meq/L Male/Female Ages >=60 Years: Normal Range: 23-31 meq/L Critical Low : <=11 meq/L Critical High : >=39 meq/L
Reference ranges may vary based on performing lab. Use lab reports when interpreting patient results.

Clinical Significance

Carbon Dioxide measurement is used in the diagnosis and treatment of numerous potentially serious disorders associated with changes in body acid-base balance.

Performing Laboratory
Mount Sinai Hospital
Holy Cross Hospital

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.