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HelpTest Code CEA1 Carcinoembryonic Antigen (CEA), Serum
Specimen Required
Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Specimen Volume: 0.6 mL
Collection Instructions:
1. Serum gel tubes should be centrifuged within 2 hours of collection.
2. Red-top tubes should be centrifuged and aliquoted within 2 hours of collection.
Useful For
Monitoring colorectal cancer and selected other cancers such as medullary thyroid carcinoma
May be useful in assessing the effectiveness of chemotherapy or radiation treatment
Carcinoembryonic antigen levels are not useful in screening the general population for undetected cancers
Method Name
Immunoenzymatic Assay
Reporting Name
Carcinoembryonic Ag (CEA), SSpecimen Type
SerumSpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 14 days | |
| Ambient | 7 days | ||
| Frozen | |||
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | OK |
Reference Values
Nonsmokers
20-69 years: <3.8 ng/mL
Smokers
20-69 years: ≤5.5 ng/mL
Performing Laboratory
MCHS- MankatoTest Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
82378
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| CEA1 | Carcinoembryonic Ag (CEA), S | 83085-1 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| CEA1 | Carcinoembryonic Ag (CEA), S | 83085-1 |
Day(s) Performed
Monday through Sunday