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| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
CEA with HAMA Treatment
Test Code15018
CPT Codes
82378 (x2)
Preferred Specimen
2 mL serum
Minimum Volume
1 mL
Transport Container
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days
Refrigerated: 7 days
Frozen: 28 days
Methodology
Immunoassay (IA)
Setup Schedule
Set up: Tues, Thurs, Sat; Report available: 2-3 days
Limitations
Approximately 5% of colorectal cancers are not associated with increased levels of CEA. CEA may be elevated in many types of solid cancer.
Reference Range
| CEA, HAMA Treated | See below |
| CEA, Untreated | |
| Non-smoker | <2.5 ng/mL |
| Smoker | <5.0 ng/mL |
Clinical Significance
CEA is a tumor marker that is useful to monitor patients with persistent, recurrent or metastatic colonic carcinoma. Patients who have received mouse monoclonal antibodies as part of treatment should have their specimens pre-treated for removal of the human antimouse antibodies (HAMA).
