--- title: Thyroglobulin Antibodies Test type: test id: thyroglobulin-ab url: "https://www.test-well.com/tests/thyroglobulin-antibodies" price_usd: 26.99 lab_fee_usd: 6 all_in_usd: 32.99 cpt: 86800 category: Thyroid sample: Blood draw fasting_required: false results_in: "2–4 business days" labs: - Quest - Labcorp - BioReference orderable: true reviewed_at: 2026-09-14 order_url: "https://www.test-well.com/cart?add=thyroglobulin-antibodies&utm_source=ai_agent&utm_medium=markdown" --- # Thyroglobulin Antibodies Test > Detects antibodies that attack thyroglobulin, a protein essential for thyroid hormone production, measured from a standard blood draw. At TestWell it costs $26.99 plus a $6 lab fee, needs no fasting, and results post in 2–4 business days. Physician-authorized with no doctor's visit or insurance needed; draw at Quest or Labcorp. ## Key facts | Fact | Value | | --- | --- | | Price | $26.99 + $6 lab processing fee per order ($32.99 all-in for this test alone) | | CPT code | 86800 | | Sample | Blood draw | | Fasting | Not required | | Results | 2–4 business days | | Labs | Quest Diagnostics, Labcorp, BioReference (NY & NJ) | | 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 Thyroglobulin Antibodies test tell you? Detects antibodies that attack thyroglobulin, a protein essential for thyroid hormone production. Thyroglobulin antibodies (TgAb) target a protein the thyroid uses to produce hormones. Elevated levels can indicate autoimmune thyroid conditions such as Hashimoto's thyroiditis or Graves' disease. This test is often ordered alongside TPO antibodies for a complete thyroid autoimmune assessment. **Clinical use:** Thyroid testing measures the hormones that regulate metabolism, energy, body temperature, weight, and mood — identifying both overactive and underactive thyroid conditions. ## Who should order it? Anyone with fatigue, weight changes, mood changes, hair loss, cold/heat intolerance, irregular cycles, or family history of thyroid disease. ## Biomarkers measured - [Thyroglobulin Antibodies](https://www.test-well.com/biomarkers/thyroglobulin-antibodies) ## Price by lab | Lab | Test price | All-in (with $6 fee) | Notes | | --- | --- | --- | --- | | Quest Diagnostics | $26.99 | $32.99 | Choose at checkout; walk-in patient service centers nationwide (not NY/NJ) | | Labcorp | $27.99 | $33.99 | Choose at checkout; walk-in patient service centers nationwide (not NY/NJ) | | BioReference (NY & NJ) | $29.99 | $35.99 | New York and New Jersey orders route here automatically | 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 Thyroglobulin Antibodies test cost? A Thyroglobulin Antibodies test costs $26.99 at TestWell — $32.99 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 $110.00 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) | $26.99 | $32.99 | Includes the one $6 lab processing fee, charged once per order | | Hospital outpatient lab, self-pay (typical) | $110.00 | $110.00 | Reference figure; hospital charges vary widely by facility and are often higher | Lab test codes: Quest test code 267 · Labcorp test no. 006685 · BioReference code 0041-4. ## How do you prepare? No fasting required. No special preparation needed. ## Related conditions - [Hypothyroidism](https://www.test-well.com/conditions/thyroid-problems) (E03.9) - [Hyperthyroidism](https://www.test-well.com/conditions/thyroid-problems) (E05.90) ## Common questions about the Thyroglobulin Antibodies test ### How long do Thyroglobulin Antibodies results take? Most Thyroglobulin Antibodies results are available in 2–4 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. ### What sample is collected for the Thyroglobulin Antibodies? Blood draw. Sample is collected at a Quest, Labcorp, or BioReference patient service center near you, or via at-home phlebotomy where available. ### How much does the Thyroglobulin Antibodies cost without insurance? On TestWell, the Thyroglobulin Antibodies is $26.99. Quest Direct lists comparable tests at $42. Walk-in hospital labs typically bill $110 or more without insurance. Insurance is not required — pay one all-in price. ### Do I need to fast before the Thyroglobulin Antibodies? No fasting required for the Thyroglobulin Antibodies. No fasting required. No special preparation needed. ### Where can I get the Thyroglobulin Antibodies done? The Thyroglobulin Antibodies 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. ## How to order 1. Add to cart: https://www.test-well.com/cart?add=thyroglobulin-antibodies&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, BioReference (NY & NJ) patient service center — no appointment needed at most sites. 5. Results post to your TestWell portal in 2–4 business days with reference ranges and flags. ## Related - [Autoimmune Advanced Panel](https://www.test-well.com/tests/autoimmune-advanced-panel) — 11 tests · $159.99 - [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) --- Medically reviewed by Youmna DiStefano, MD (Medical Reviewer, TestWell); last reviewed 2026-09-14. Review policy: https://www.test-well.com/reviewers/youmna-distefano-md Canonical page: https://www.test-well.com/tests/thyroglobulin-antibodies 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.