--- title: TRAb (TSH Receptor Antibody) Test type: test id: trab url: "https://www.test-well.com/tests/tsh-receptor-antibody-trab" price_usd: 69.99 lab_fee_usd: 6 all_in_usd: 75.99 category: Thyroid sample: Blood draw fasting_required: false results_in: "3–5 business days" labs: - Quest - Labcorp orderable: true order_url: "https://www.test-well.com/cart?add=tsh-receptor-antibody-trab&utm_source=ai_agent&utm_medium=markdown" --- # TRAb (TSH Receptor Antibody) Test > TRAb (TSH Receptor Antibody) measures TSH Receptor Antibody (TRAb) from a standard blood draw. At TestWell it costs $69.99 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 or Labcorp. ## Key facts | Fact | Value | | --- | --- | | Price | $69.99 + $6 lab processing fee per order ($75.99 all-in for this test alone) | | Sample | Blood draw | | Fasting | Not required | | Results | 3–5 business days | | Labs | Quest Diagnostics, Labcorp | | Biomarkers measured | 1 | | Physician authorization | Included — no doctor's visit, referral or insurance needed | | Payment | Card, HSA or FSA; cash-pay only (no insurance billing) | ## What does the TRAb (TSH Receptor Antibody) test tell you? Measures antibodies that bind the TSH receptor — the marker used to confirm Graves' disease and separate it from other causes of an overactive thyroid. 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. ## Biomarkers measured - TSH Receptor Antibody (TRAb) ## Price by lab | Lab | Test price | All-in (with $6 fee) | Notes | | --- | --- | --- | --- | | Quest Diagnostics | $69.99 | $75.99 | Choose at checkout; walk-in patient service centers nationwide (not NY/NJ) | | Labcorp | $109.99 | $115.99 | Choose at checkout; walk-in patient service centers nationwide (not NY/NJ) | Rhode Island is not served. Prices are identical online and in the lab; no draw fee or physician fee is added. ## How much does a TRAb (TSH Receptor Antibody) test cost? A TRAb (TSH Receptor Antibody) test costs $69.99 at TestWell — $75.99 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 $300.00 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) | $69.99 | $75.99 | Includes the one $6 lab processing fee, charged once per order | | 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. ## How do you prepare? No fasting required. Stop high-dose biotin supplements at least 2 days before the draw. ## How to order 1. Add to cart: https://www.test-well.com/cart?add=tsh-receptor-antibody-trab&utm_source=ai_agent&utm_medium=markdown 2. Create an account or sign in, confirm your state and preferred lab, pay by card, HSA or FSA. 3. A licensed physician authorizes the order (usually within minutes); the requisition arrives by email. 4. Walk into any Quest Diagnostics, Labcorp patient service center — no appointment needed at most sites. 5. Results post to your TestWell portal in 3–5 business days with reference ranges and flags. ## Related - [Free T3 (Triiodothyronine)](https://www.test-well.com/tests/free-t3) — $30.99 - [Free T4 (Thyroxine)](https://www.test-well.com/tests/free-t4-test) — $23.99 - [Reverse T3](https://www.test-well.com/tests/reverse-t3) — $35.99 - [T3 Uptake](https://www.test-well.com/tests/t3-uptake-test) — $22.99 - [T3, Total (Triiodothyronine)](https://www.test-well.com/tests/total-t3-test) — $24.99 - [All Thyroid tests](https://www.test-well.com/tests/category/thyroid) - [Full test directory](https://www.test-well.com/tests/directory) --- Canonical page: https://www.test-well.com/tests/tsh-receptor-antibody-trab Machine-readable catalog: https://www.test-well.com/api/catalog.json · MCP server: https://www.test-well.com/mcp · Overview for agents: https://www.test-well.com/llms.txt Prices are cash-pay, in USD, and include physician authorization; every order adds one flat $6 lab processing fee. Educational content is not a diagnosis — discuss results with a clinician.