Thyroid Peroxidase and Thyroglobulin Antibodies (TPTGAB)

Test Code

LAB2410

Quest Code

7260

CPT Codes
86376, 86800

Includes

TPTGAB

Preferred Specimen

1 mL serum in gold top tube

Patient Preparation
Dietary supplements containing biotin may interfere in assays and may skew results to be either falsely high or falsely low. For patients receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For patients on mega-doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation.

Other Acceptable Specimens

Plain red top tube

Instructions

Administration of STRENSIQ may interfere in certain assays and may falsely elevate values. For patients receiving STRENSIQ, consideration should be given to using alternate methods.

Transport Container

Transport tube

Transport Temperature

Room Temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Grossly hemolyzed or lipemic

Methodology
Immunoassay (IA)

Reference Range

Thyroid Peroxidase Ab	<9 IU/mL
Thyroglobulin Ab	≤1 IU/mL

Clinical Significance

Measurement of thyroglobulin antibodies and thyroid peroxidase antibodies is useful in the diagnosis and management of a variety of thyroid disorders including autoimmune thyroiditis, Hashimoto's Disease, Graves Disease and certain types of goiter.

Performing Laboratory

Quest Diagnostics - South Region

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.