Cancer Antigen 19-9

Test Code: TD_4976
CPT Code(s): 86301

$39

Test Details

Alternative Name(s)

CA 19-9
Carbohydrate Antigen 19-9

Test Includes

Cancer Antigen 19-9

Methodology

Roche COBAS Electrochemiluminescent Immunoassay (ECLIA) or other automated chemistry method

Rejection Criteria

Repeated free/thaw cycles

Reference Range(s)

<35 U/ML

Specimen Requirements

Preferred Specimen

Serum Seperator Tube

Minimum Volume

Adult: 0.5 mL Serum
Pediatric: 0.2 mL Serum (does not allow for repeat or additional testing).

Sample Stability

5 days room temperature
2 weeks refrigerated
3 months frozen

Transport Temperature

Refrigerated

Collection Instructions

Allow SST to clot in an upright position for at least 30 minutes, then centrifuge sample within 2 hours of collection. Refrigerate.
Note: Do not collect samples from patients receiving therapy with high biotin doses (>5 mg/day) until at least 8 hours following the last biotin administration.

Alternative Specimen

2 mL serum from a plain red top tube. Allow sample to clot in an upright position for at least 60 minutes, then centrifuge sample and transfer serum to a plastic transport tube within 2 hours of collection. Clearly label tube as serum from a plain red top tube. Refrigerate.
Note: Do not collect samples from patients receiving therapy with high biotin doses (>5 mg/day) until at least 8 hours following the last biotin administration.