Thyroid peroxidase (TPO) is an enzyme made in the thyroid gland that is important in the production of thyroid hormone.
This test includes (expand individual tests for details):
Thyroid Peroxidase Antibodies/Anti TPO
Thyroid peroxidase is an enzyme which is produced in the thyroid gland. It plays an important role in the production of thyroid hormones. This test looks for antibodies to thyroid peroxidase. The presence of these antibodies in your blood suggests that the cause of thyroid disease is an autoimmune disorder, such as Hashimoto disease or Graves disease.