Carcinoembryonic antigen

Test Code: TD_2645

CPT Code(s): 82378

$27

Test Details

Alternative Name(s)

CEA

Test Includes

Carcinoembryonic antigen

Methodology

Roche COBAS Electrochemiluminescent Immunoassay (ECLIA)

Rejection Criteria

Gross hemolysis

Reference Range(s)

<=3.8 NG/MLML
Otherwise healthy smokers: 0.0-5.5 NG/ML

Specimen Requirements

Preferred Specimen

Serum separator tube (SST)

Minimum Volume

1 mL serum

Sample Stability

1 week room temperature
2 weeks refrigerated
6 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.