The Thyroid Peroxidase (TPO) Antibodies test is a blood test that is used to help determine and differentiate between whether an individual has hypothyroidism (underactive thyroid) or thyroiditis (inflammation of the thyroid).
Aiding in the diagnosis of thyroid autoimmune disorders.
Values above 9.0 IU/mL generally are associated with autoimmune thyroiditis, but elevations are also seen in other autoimmune diseases.
