Thyroid Peroxidase and Thyroglobulin Antibodies

Test Code

7260

CPT Codes
86376, 86800

Preferred Specimen

1 mL serum

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.

Minimum Volume

0.6 mL

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 Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 4 days
Refrigerated: 7 days
Frozen: 28 days

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

Gross hemolysis • Grossly lipemic

Methodology
Immunoassay (IA)

Setup Schedule

Set up: Mon-Fri; Report available: 1-4 days

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 Nichols Institute Chantilly
14225 Newbrook Dr
Chantilly, VA 20153

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.