CARCINOEMBRYONIC ANTIGEN (CEA)

Specimen Required
Draw blood in a SST. Centrifuge, separate and send 1.0 mL serum (0.5 mL minimum) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Serum: Red-top

Rejection Criteria
Severe hemolysis or lipemia, plasma

Methodology
Chemiluminescence

Stability
Room Temperature: 7 days; Refrigerated: 7 days; Frozen: 28 days

Reference Range
Non-smoker: <2.5 ng/mL
Smoker: <5.0 ng/mL

Performed
Tuesday-Saturday

Turnaround Time2-5 days
Test CodeCEA
CPT-4 Code (s)
82378
LOINC Codes
2039-6

Warde
Medical
Laboratory