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Carbon Dioxide
Test Code310
Preferred Specimen
Gold Top
FULL, DO NOT OPEN
FULL, DO NOT OPEN
Minimum Volume
0.5 mL
Other Acceptable Specimens
Plasma collected in: Sodium heparin (green-top) tube or lithium heparin (green-top) tube
Instructions
Do not open tube
Transport Container
1 full unopened spun gel barrier tube
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 72 hours
Refrigerated: 72 hours
Frozen: 31 days
Refrigerated: 72 hours
Frozen: 31 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Anticoagulants other than heparin • Red-top tube (no gel)
Methodology
Spectrophotometry (SP)
Setup Schedule
Mon-Sat
Report Available
3 days
Limitations
Proper specimen collection and processing are critical for reliable testing.
Reference Range
20-32 mmol/L
Clinical Significance
Measurements are used in the diagnosis and treatment of numerous potentially serious disorders associated with changes in body acid-base balance.
