Test Code TCO2 Carbon Dioxide (CO2), Plasma or Serum
Methodology
Enzymatic Reaction using PEPC
Performing Laboratory
Decatur Morgan Hospital-Decatur Campus/Parkway Campus
Specimen Requirements
Submit only 1 of the following specimens:
Plasma
Draw blood in a green-top (lithium heparin) tube(s). Spin down and send 1 mL (pediatric: 0.2 mL) of lithium heparin plasma. Avoid exposure of specimen to atmosphere.
Note: 1. Indicate plasma on request
form.
2. Label specimen appropriately (plasma).
Serum
Draw blood in a plain, red-top tube(s) or a serum gel tube(s). Spin down and send 1 mL (pediatric: 0.2 mL) of serum. Avoid exposure of specimen to atmosphere.
Note: 1. Indicate serum on request
form.
2. Label specimen appropriately (serum).
Reference Values
0-6 days: 17.0-24.0 mmol/L
7 days-12 years: 20.0-28.0 mmol/L
>12 years: 25-35 mmol/L
Test Classification and CPT Coding
82374