Test Directory
3240 Carbon Dioxide (CO2)
Specimen Type
Specimen Stability
Reference Range
Serum-SST
24 hrs
3 days refrigerated when separated from red cells and tightly stoppered.
3 days refrigerated when separated from red cells and tightly stoppered.
21-31 mEq/L
Specimen Requirements
Preferred amount: 1.0 mL Serum
Minimum amount: 0.5 mL Serum
Minimum amount: 0.5 mL Serum
Method
Enzymatic
Schedule
Mon-Sat
Turn-Around Time
24 hrs; Also offered STAT at an additional charge
Instructions/Notes
Centrifuge required?: Yes
Clinical Utility
As part of an electrolyte panel to screen for an electrolyte or acid-base imbalance or to monitor a known imbalance.
CPT Codes
82374
