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What Is a Thyroid Peroxidase Antibody Test?
Medically reviewed by Danielle Weiss, MD Thyroid peroxidase (TPO) is an enzyme made by your thyroid, the butterfly-shaped ...
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Perinatal Thyroid Dysfunction: Prenatal Diagnosis and Treatment
Anti-TPO - Antithyroid peroxidase (anti-TPO) antibodies to thyroid peroxidase ... they belong to the IgG class. High TSI in the mother is strongly predictive of fetal or neonatal hyperthyroidism.