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Labcorp Oklahoma, Inc.
Test Directory


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Carcinoembryonic Antigen (CEA)

Order Name CEA ABB
Test Number: 4500425
Revision Date 04/30/2021
Test Name Methodology LOINC Code
Carcinoembryonic Antigen (CEA)
Chemiluminescence Assay 2039-6 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 2mL (1mL) Serum Clot Activator SST Refrigerated
Alternate 1 2mL (1mL) Plasma Lithium Heparin PST (Light Green Top) Refrigerated
Instructions Stability: Ambient 1 day, Refrigerated 7 days, Frozen >7days
GENERAL INFORMATION
Testing Schedule Mon - Fri 
Expected TAT 1-3 days  
Clinical Use Useful for monitoring colorectal cancer. May be useful in assessing the effectiveness of chemotherapy or radiation treatment. 
CPT Code(s) 82378
Lab Section Chemistry