Test directory: CO2

Ordering Code148
Test NameCO2
AliasCarbon Dioxide
Bicarbonate
Preferred SpecimenSerum
Preferred ContainerSST (Gold)
Other Specimen/ContainerPlasma in Lithium Heparin (Green),
Serum in Plain (Red)
Optimum Volume0.5 mL
Handling InstructionsKeep specimen &/or aliquot samples capped.
Transport RequirementsOahu: Ambient
Airline: Refrigerated
Specimen StabilityAmbient: 24 Hours
Refrigerated: 2 Days
Frozen: 1 Month
Once sample has been uncapped, it is stable refrigerated for 4 hours only.
Rejection CriteriaGrossly hemolyzed, Insufficient quantity, Specimen older than stability limits, Uncapped or loosely capped specimens/aliquots
Avail. StatYES
Analytic Time1 Day
MethodologyEnzymatic Colorimetric

Reference range(s)

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
CO2ALL21-30<= 10>= 4021-30>= 40<= 10mEq/L