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Test Code AFP Alpha-Fetoprotein (AFP) Tumor Marker, Serum

Reporting Name

Alpha-Fetoprotein, Tumor Marker, S

Useful For

Follow-up management of patients undergoing cancer therapy, especially for testicular and ovarian tumors and for hepatocellular carcinoma

 

Often used in conjunction with human chorionic gonadotropin.(2)

 

This test is not recommended as a screening procedure for cancer detection in the general population.

 

This test is not intended for the detection of neural tube defects.

 

This test is not useful for patients with pure seminoma or dysgerminoma.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum


Ordering Guidance


This test is used as a tumor marker and is not intended for the detection of neural tube defects. For testing amniotic fluid specimens, order AFPA / Alpha-Fetoprotein, Amniotic Fluid.



Specimen Required


Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.6 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated (preferred) 7 days
  Frozen  90 days

Special Instructions

Reference Values

<8.4 ng/mL

Reference values are for nonpregnant subjects only; fetal production of alpha-fetoprotein elevates values in pregnant women.

 

Range for newborns is not available, but concentrations over 100,000 ng/mL have been reported in normal newborns, and the values rapidly decline in the first 6 months of life.(See literature reference: Ped Res 1981;15:50-52) For further interpretive information, see Alpha-Fetoprotein (AFP)

 

Serum markers are not specific for malignancy, and values may vary by method.

Day(s) Performed

Monday through Friday

Test 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

82105

LOINC Code Information

Test ID Test Order Name Order LOINC Value
AFP Alpha-Fetoprotein, Tumor Marker, S 53962-7

 

Result ID Test Result Name Result LOINC Value
AFP Alpha-Fetoprotein, Tumor Marker, S 53962-7

Report Available

1 to 3 days

Reject Due To

Gross hemolysis Reject
Gross lipemia OK
 

Method Name

Immunoenzymatic Assay

Forms

If not ordering electronically, complete, print, and send Oncology Test Request (T729) with the specimen.

Secondary ID

8162