Previous Product Thyroid Peroxidase Antibody (TPO) $80.00 Helps diagnose autoimmune thyroid disorders and distinguish them from other thyroid disorders. Thyroid Peroxidase Antibody (TPO) quantity Add to cart Category: Individual Testing Related products Quick View Quick View Individual TestingFree Thyroxine (Free T4) $39.00 Add to cart Quick View Quick View Individual TestingCeliac Disease A/B Screen $159.00 Add to cart Quick View Quick View Individual TestingHomocysteine, Plasma $89.00 Add to cart