Name: Carcinoembryonic Antigen
Test Name: Carcinoembryonic Antigen
Health Link Test Code: CEA
LIS Test Code: CEA
CPT Code(s): 82378
Methodology: Chemiluminescent Immunoassay
Days Performed: Daily, 24 hours.
In-Lab Turnaround Time: 4 hours.
Stat In-Lab Turnaround Time: Not available stat.
Collection Container: Red cap with yellow ring (SST)
Also Acceptable: Red top
Collection Volume: 1 mL
Pediatric Collection Volume: 0.5 mL
7 days removed from cells, clot, or gel
24 hours on gel
Sample Analyzed: Serum
Testing Volume: 0.5 mL
Pediatric Testing Volume: 0.15 mL
Centrifuge. If a complete barrier has not formed, transfer cell-free serum to plastic vial. Refrigerate.
Transport specimen to the laboratory. Transport with coolant pack if coming from clinic location.
0 days and up: <5.0 ng/mL
CEA levels in smokers may be higher.
Interpretation Type: Reference Interval
The Abbot ARCHITECT CEA assay should not be used as a cancer screening test.
Results may be affected if patient has developed heterophilic antibodies due to exposure to animal based protein.
A high dose hook effect is not seen in results up to 60,000 ng/mL.
The Abbott ARCHITECT CEA method is used. Results obtained with different assay methods or kits cannot be used interchangeably.