Thyroid Antibodies Blood Test

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Feature	Labcorp	Quest Diagnostics
Price	$32.99	$20.49
Results in	~3 business days	~5 business days
Sample type	Blood Serum	Blood Serum
Require fasting	No	No

About the test

This panel measures the levels of antibodies to thyroid peroxidase and thyroglobulin. It can be used to help diagnose autoimmune thyroid conditions.

Included biomarkers & Reference ranges

Biomarker	Reference range
Thyroid Peroxidase Antibodies (Anti-TPO) An autoantibody that's the most common marker of autoimmune thyroid disease, including Hashimoto's thyroiditis and Graves' disease.	0–9 IU/mL
Thyroglobulin Antibodies (Anti-Tg) An autoantibody against thyroglobulin. Elevated levels are associated with autoimmune thyroid conditions like Hashimoto's thyroiditis, and checked before using thyroglobulin to monitor thyroid cancer.	0–1 IU/mL

Reference ranges vary by lab, age, and sex (M/F). Your report shows your exact range. Click any biomarker to see its optimal range and what your results mean.

Preparation

Labcorp lists no special preparation for this test.

Administration of STRENSIQ may interfere in certain assays and may falsely elevate values. For patients receiving STRENSIQ, consideration should be given to using alternate methods.

How it works

1. Order online No referral or insurance
2. Get a requisition By email in 24–72 hours
3. Visit a draw center Bring a matching photo ID
4. Get results Securely by email

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Consultations

Not sure how to read your results? We can help.

Schedule a consultation with a Hormunity specialist. We’ll walk through every marker, interpret what it means for you, and map out the next steps for your care.

Book a specialist