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CA 19-9, CSF
Test Code17417
CPT Codes
86301
Preferred Specimen
3 mL CSF in a sterile transport tube
Minimum Volume
2 mL
Transport Temperature
Frozen
Specimen Stability
Room temperature: 24 hours
Refrigerated: 7 days
Frozen: 28 days
Refrigerated: 7 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Received room temperature
Methodology
Immunoassay (IA)
Setup Schedule
Set up: Wed; Report available: 2-9 days
Clinical Significance
CA 19-9 may be useful in the investigation of malignancy