Hospital Lab
$150
cash pay
Other Labs
$50
+ lab fees
TestWell
$25.99
+ $6 lab fee
Thyroid Peroxidase (TPO) antibodies target an enzyme in the thyroid gland that plays a key role in producing thyroid hormones. Elevated TPO antibodies are the hallmark of Hashimoto's thyroiditis, the most common cause of hypothyroidism. They can be elevated years before thyroid hormone levels become abnormal.
Thyroid Peroxidase antibodies — the most sensitive single marker for autoimmune thyroid disease (Hashimoto's). Used to confirm autoimmunity when TSH is abnormal.
Anyone with subclinical or overt hypothyroidism, unexplained miscarriage or infertility, family history of autoimmune disease, or other autoimmune conditions (T1 diabetes, celiac, RA).
Sample Type
Blood draw
Fasting
Not required
Results In
2–4 business days
Performed At
Quest or Labcorp
Your Thyroid Peroxidase (TPO) Antibodies results will include values for each of the 1 biomarker tested, along with reference ranges. Results are reviewed by a licensed physician before being released to your secure portal.
If any values fall outside the normal range, your report will include guidance on what that may mean and recommended next steps. You'll receive an email notification when your results are ready, typically within 2–4 business days.
Typical reference range layout
Lab reports show where your value sits relative to established reference intervals—your physician interprets this in context for you.
Your Thyroid Peroxidase (TPO) Antibodies results will include values for each of the 1 biomarker tested, along with reference ranges. Results are reviewed by a licensed physician before being released to your secure portal.
If any values fall outside the normal range, your report will include guidance on what that may mean and recommended next steps. You'll receive an email notification when your results are ready, typically within 2–4 business days.
Typical reference range layout
Lab reports show where your value sits relative to established reference intervals—your physician interprets this in context for you.
No fasting required. No special preparation needed.
No fasting required. No special preparation needed.
TestWell Price
$25.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
Better value: the Complete Thyroid Panel
Save $37.96This test is part of the Complete Thyroid Panel — 5 tests · 6 biomarkers for $109.99, $37.96 less than à la carte.
$109.99$147.95
5 tests · 6 biomarkers
Frequently ordered together
Customers who ordered Thyroid Peroxidase (TPO) Antibodies also added these for a more complete health picture.
Not sure where to start?
Thyroid Peroxidase (TPO) Antibodies
$25.99