Test Code: 006676 Specimen Type: Blood Description: Thyroid Peroxidase Antibody Blood Test (Labcorp) This test measures levels of Thyroid Peroxidase Antibodies in the blood. Thyroid Peroxidase (TPO) is an enzyme produced by the thyroid gland which aids in the conversion of T4 to T3. TPO ...
At that point, I changed over to T3-containing meds (this can bypass the poor conversion issues, regardless of the cause), and worked on getting my ferritin levels up. While not a “thyroid test” per se, I feel like ferritin is such an important part of a comprehensive thyroid panel (...