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Test Code TPO Thyroperoxidase Antibodies, Serum


Specimen Required


Patient Preparation: For 12 hours before specimen collection, patient should not take multivitamins or dietary supplements (eg, hair, skin, and nail supplements) containing biotin (vitamin B7).

Supplies: Sarstedt 5 mL Aliquot Tube (T914)

Collection Container/Tube: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.6 mL serum

Collection Instructions: Within 2 hours of collection, centrifuge and aliquot serum into plastic vial.


Secondary ID

800146

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

Method Name

Chemiluminometric Immunoassay

Reporting Name

Thyroperoxidase Ab, S

Specimen Type

Serum Red

Specimen Minimum Volume

Serum: 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 Friday, Sunday

Report Available

1 to 3 days

Performing Laboratory

Mayo Clinic Laboratories in Florida

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

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

Testing Algorithm

For more information, see Thyroid Function Ordering Algorithm