On your lab requisition: Quest “TRAb (TSH Receptor Binding Antibody)” (test code 38683)Labcorp “Thyrotropin Receptor Ab, Serum” (test no. 010314)
The short answer
TRAb (TSH Receptor Antibody) measures TSH Receptor Antibody (TRAb) from a standard blood draw. At TestWell it costs $69.99 plus a $6 lab processing 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 or Labcorp.
TestWell Price
$69.99
+ $6 lab processing fee
TSH receptor antibodies (TRAb, also reported as TBII) are the autoantibodies behind Graves' disease. This binding assay detects any antibody that attaches to the TSH receptor, whether it stimulates the thyroid (as in Graves') or blocks it (an uncommon cause of hypothyroidism), so a positive result in a patient with hyperthyroidism points strongly to Graves' disease rather than a toxic nodule, thyroiditis or excess thyroid medication. It is used at diagnosis — often instead of a radioactive uptake scan — to monitor response to antithyroid drugs, to estimate the chance of relapse when treatment is stopped, and in pregnancy to assess the risk to the baby. The companion TSI test measures the stimulating antibodies specifically; endocrinologists frequently order both. Not available through BioReference, so it cannot be collected in New York or New Jersey.
Thyroid testing measures the hormones that regulate metabolism, energy, body temperature, weight, and mood — identifying both overactive and underactive thyroid conditions.
Anyone with fatigue, weight changes, mood changes, hair loss, cold/heat intolerance, irregular cycles, or family history of thyroid disease.
Sample Type
Blood draw
Fasting
Not required
Results In
3–5 business days
Performed At
Quest or Labcorp
1 biomarker tested
Your TRAb (TSH Receptor Antibody) 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 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. Already have results? Analyze them with your AI assistant against our physician-reviewed ranges.
No fasting required. Stop high-dose biotin supplements at least 2 days before the draw.
A TRAb (TSH Receptor Antibody) test costs $69.99 at TestWell — $75.99 all-in, since the $6 lab processing fee is charged once per order and there is no draw or physician fee. Hospital outpatient labs typically bill around $300.00 self-pay. With insurance you pay your plan's negotiated rate against your deductible; TestWell's price is fixed before the draw and HSA/FSA-eligible.
| Where you order | Price | One test, all-in | Notes |
|---|---|---|---|
| TestWell (drawn at Quest) | $69.99 | $75.99 | Includes the one $6 lab processing fee, charged once per order |
| TestWell (drawn at Labcorp) | $109.99 | $115.99 | Labcorp's own cost for this test is higher; same order, same portal, same physician review |
| Hospital outpatient lab, self-pay (typical) | $300.00 | $300.00 | Reference figure; hospital charges vary widely by facility and are often higher |
Lab test codes: Quest test code 38683 · Labcorp test no. 010314. 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
Most TRAb (TSH Receptor Antibody) results are available in 3–5 business days after your specimen arrives at the lab. You'll get an email the moment results are ready, with everything viewable in your TestWell portal.
Blood draw. A standard venous blood draw, collected at any Quest, Labcorp or BioReference patient service center — walk in with the requisition we email you, no appointment needed at most locations.
On TestWell, the TRAb (TSH Receptor Antibody) is $69.99. Quest Direct lists comparable tests at $99. Walk-in hospital labs typically bill $300 or more without insurance. Insurance is not required — pay one all-in price.
No fasting required for the TRAb (TSH Receptor Antibody). No fasting required. Stop high-dose biotin supplements at least 2 days before the draw.
The TRAb (TSH Receptor Antibody) is available at Quest and Labcorp patient service centers nationwide. Order online at TestWell, pick your preferred lab, and we'll generate a digital requisition for the location closest to you.
The TRAb (TSH Receptor Antibody) test is Quest Diagnostics test code 38683 ("TRAb (TSH Receptor Binding Antibody)"), Labcorp test number 010314 ("Thyrotropin Receptor Ab, Serum"). TestWell orders it under those codes for $69.99 at Quest or Labcorp — no doctor's visit or insurance required, results in 3–5 business days. Codes verified against the labs' catalogs in 2026.
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
TestWell Price
$69.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
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TRAb (TSH Receptor Antibody)
$69.99