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Carbon Dioxide
MessageChemistry
Test Code
LAB55
Alias/See Also
CO2
CPT Codes
82374
Includes
CO2
Preferred Specimen
Light green top tube (lithium heparin plasma)
Minimum Volume
Whole blood: 600 uL ( one full light-green-top microtainer or two full red-top microtainers).
Serum/plasma: 300 uL plasma.
Serum/plasma: 300 uL plasma.
Other Acceptable Specimens
Gold top (serum separator tube) or Red Top
Instructions
Serum acceptable. Included in BMP and CMP. LAB: Separate within 4 hours of collection. Handle anaerobically. Store tightly capped at Ambient: up to 24 hours. Refrigerated: 3 days. Frozen: 1 month.
Specimen Stability
Ambient: up to 24 hours
Refrigerated: 3 days
Frozen: 1 month
Refrigerated: 3 days
Frozen: 1 month
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolyzed, contaminated, not enough volume
FDA Status
Approved
Setup Schedule
Everyday
Report Available
Same day
Reference Range
24 - 32 mmol/L
Performing Laboratory
Hoag Newport/ Hoag Irvine
