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Test Code TPO Thyroperoxidase Antibodies, Serum

Reporting Name

Thyroperoxidase Ab, S

Useful For

Aiding in the diagnosis of thyroid autoimmune disorders

 

Differentiating thyroid autoimmune disorders from nonautoimmune goiter or hypothyroidism

 

As a diagnostic tool in deciding whether to treat a patient who has subclinical hypothyroidism

Testing Algorithm

For more information, see Thyroid Function Ordering Algorithm

Method Name

Chemiluminometric Immunoassay

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum Red


Specimen Required


Patient Preparation: For 12 hours before specimen collection do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins.

Supplies: Sarstedt 5 mL Aliquot Tube (T914)

Collection Container/Tube: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.6 mL

Collection Instructions: Centrifuge and aliquot serum into plastic vial within 2 hours of collection.


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Red Refrigerated (preferred) 7 days
  Frozen  30 days
  Ambient  7 days

Reject Due To

Gross hemolysis Reject
Gross lipemia OK

Reference Values

<9.0 IU/mL

Reference values apply to all ages.

Day(s) Performed

Monday through Saturday

CPT Code Information

86376

LOINC Code Information

Test ID Test Order Name Order LOINC Value
TPO Thyroperoxidase Ab, S 8099-4

 

Result ID Test Result Name Result LOINC Value
TPO Thyroperoxidase Ab, S 8099-4

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.

Report Available

1 to 3 days