The short answer
Thyroglobulin Panel (Thyroglobulin + Antibodies) measures Thyroglobulin and Thyroglobulin Antibodies from a standard blood draw. At TestWell it costs $39.99 plus a $6 lab fee, needs no fasting, and results post in 3–5 business days. Physician-authorized with no doctor's visit or insurance needed; draw at Quest.
TestWell Price
$39.99
+ $6 lab processing fee
Thyroglobulin is a protein made only by thyroid tissue, so after the thyroid has been removed or ablated for thyroid cancer, a rising or detectable thyroglobulin is the earliest signal that thyroid cells remain or have returned; endocrinologists follow it at regular intervals for years. The antibody measurement is run at the same time because thyroglobulin antibodies interfere with the thyroglobulin assay — when they are present the thyroglobulin value can read falsely low, and the antibody level itself becomes the marker that is followed. Outside cancer care, thyroglobulin is raised in thyroiditis, Graves' disease and goiter, and it is sometimes measured to tell factitious hyperthyroidism (taking thyroid hormone) from thyroid overactivity, since thyroglobulin is suppressed in the former. This panel reports both values separately. Results should be interpreted by the clinician managing your thyroid care, ideally with the same laboratory used for previous measurements, because thyroglobulin assays differ between labs.
Sample Type
Blood draw
Fasting
Not required
Results In
3–5 business days
Performed At
Quest
Your Thyroglobulin Panel (Thyroglobulin + Antibodies) results will include values for each of the 2 biomarkers 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 3–5 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. Stop high-dose biotin supplements at least 2 days before the draw. Tell your clinician if you have had thyroid surgery or radioactive iodine — it changes how the result is read.
A Thyroglobulin Panel (Thyroglobulin + Antibodies) test costs $39.99 at TestWell — $45.99 all-in when ordered alone, because the $6 lab processing fee is charged once per order, with no draw fee or physician fee added. Hospital outpatient labs typically bill around $250.00 self-pay for the same test, and often more. With insurance, what you pay depends on your deductible and your plan's negotiated rate; TestWell's price is fixed before the draw and is HSA/FSA-eligible.
| Where you order | Price | One test, all-in | Notes |
|---|---|---|---|
| TestWell (drawn at Quest or Labcorp) | $39.99 | $45.99 | Includes the one $6 lab processing fee, charged once per order |
| Hospital outpatient lab, self-pay (typical) | $250.00 | $250.00 | Reference figure; hospital charges vary widely by facility and are often higher |
Lab test codes: Quest test code 30278 · BioReference code 7470-8. Competitor prices are read from the linked public pages and re-checked regularly; the labs' sites may add taxes or change prices without notice.
Compare more: Quest Diagnostics price list · Labcorp price list · Quest vs Labcorp · Lab test price checker
TestWell Price
$39.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
Frequently ordered together
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Thyroglobulin Panel (Thyroglobulin + Antibodies)
$39.99