Thyroid Peroxidase Antibody (TPO)

Item Catalog Number: LC006676

Thyroid Peroxidase is an enzyme involved in the production of thyroid hormones. It is possible for antibodies from your own immune system to attack this enzyme rendering it dysfunctional.

Antibodies to thyroid peroxidase can result in symptoms of low thyroid such as fatigue, weight gain, dry skin and constipation. Conditions such as Hashimoto’s thyroiditis, lupus, rheumatoid arthritis, and pernicious anemia often have these antibodies present.

This test measures thyroid peroxidase antibody (TPO) and is often used in conjunction with the thyroglobulin antibody. Doctors often use these tests to help them assess thyroid function, follow treatment for thyroid disease and differentiate between autoimmune conditions of the thyroid. Both of these thyroid antibodies are included in the Lichten Comprehensive thyroid panel (LICHTEN02).

Fasting is not required. Take all medications as prescribed.  Do not take your supplements the morning of the test.