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Quest / Thyroid Function
Thyroid Peroxidase Antibodies (TPO)
This test detects antibodies against thyroid peroxidase, an enzyme involved in thyroid hormone production. The presence of TPO antibodies may indicate an autoimmune response targeting the thyroid gland. Commonly used to assess for...
Coming Soon
What this lab measures
This test detects antibodies against thyroid peroxidase, an enzyme involved in thyroid hormone production. The presence of TPO antibodies may indicate an autoimmune response targeting the thyroid gland. Commonly used to assess for...
How testing works
Order online
Choose your marker and add a brief medical history so your result has context from the first draw.
Visit a partner lab
Take your order to a certified Quest location for a short blood draw.
Clinician review
A licensed clinician reviews your result and shares clear interpretation with next steps.
FAQ
After ordering, visit a certified Quest partner location for a short blood draw. No insurance is required.
Feelrx / Start here
Know your baseline.
Order a panel online, draw at a certified partner lab, and receive a clear clinician review.
Coming Soon