**Note: All laboratory testing requires an authorizing physician. DHA Laboratory offers a Patient Direct Program that partners you with an authorizing physician. If you have any additional questions regarding the availability of testing, please contact our laboratory by telephone or email.**
This test is used to differentiate the diagnosis of thyroiditis and hypothyroidism. Thyroid Peroxidase is an enzyme that can be found in the thyroid gland. The presence of these antibodies in your blood can help determine that the cause of thyroid disease is an autoimmune disorder.
Patient Preparation: Discontinue any supplements containing Biotin for 72 hours prior to specimen collection.