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Anti-TPO Ab (RDL)

CPT: 86376

Synonyms

  • Anti-Thyroid Microsomal Peroxidase Ab
  • Thyroid peroxidaseantibodies
  • TPO
  • TPO Ab

Test Includes

This test is a component of ANA Profile 12, ANA 12 Plus Profile, Thyroid Autoantibody Panel.


Expected Turnaround Time

7 - 14 days


Specimen Requirements


Specimen

Serum


Volume

1 mL


Minimum Volume

0.3 mL (Note: This volume does not allow for repeat testing.)


Container

Red-top tube or gel-barrier tube


Collection

Separate serum from cells within one hour of collection. Transfer to a plastic transport tube before shipping. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.


Storage Instructions

Refrigerate or freeze.


Stability Requirements

Temperature

Period

Room temperature

7 days

Refrigerated

14 days

Frozen

60 days

Freeze/thaw cycles

Stable x1


Causes for Rejection

Grossly hemolyzed; bacterial contamination; lipemic specimen; icteric specimen; non-serum specimen types


Test Details


Use

In virtually all cases of Hashimoto’s disease and in the majority of Graves’ disease cases, Anti-TPO autoantibodies are elevated. High levels of Anti-TPO autoantibodies, in the context of the clinical presentation of hypothyroidism, confirms the diagnosis of Hashimoto’s disease.


Methodology

Chemiluminescent Immunoassay


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CPT Statement/Profile Statement

The LOINC® codes are copyright © 1994-2020, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf