--- title: Tryptase Test type: test id: tryptase url: "https://www.test-well.com/tests/tryptase-test" price_usd: 71.99 lab_fee_usd: 6 all_in_usd: 77.99 category: Allergy sample: Blood draw fasting_required: false results_in: "3–5 business days" labs: - Quest orderable: true reviewed_at: 2026-09-14 order_url: "https://www.test-well.com/cart?add=tryptase-test&utm_source=ai_agent&utm_medium=markdown" --- # Tryptase Test > Screens for mast cell disorders and anaphylaxis risk — elevated in mastocytosis and after severe allergic reactions, measured from a standard blood draw. At TestWell it costs $71.99 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. ## Key facts | Fact | Value | | --- | --- | | Price | $71.99 + $6 lab processing fee per order ($77.99 all-in for this test alone) | | Sample | Blood draw | | Fasting | Not required | | Results | 3–5 business days | | Labs | Quest Diagnostics | | 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 Tryptase test tell you? Screens for mast cell disorders and anaphylaxis risk — elevated in mastocytosis and after severe allergic reactions. Tryptase is an enzyme released primarily by mast cells. Baseline tryptase levels are used to screen for mastocytosis (an abnormal accumulation of mast cells) and mast cell activation syndrome (MCAS) — conditions that cause flushing, hives, gastrointestinal symptoms, and potentially life-threatening anaphylaxis. A baseline tryptase above 20 ng/mL is highly suggestive of systemic mastocytosis. Elevated levels can also be seen after anaphylactic reactions, severe allergic episodes, and certain blood cancers. This test is valuable for patients with unexplained allergic-type symptoms, recurrent anaphylaxis, or suspected mast cell disorders. **Clinical use:** Allergy-specific IgE testing helps identify what your immune system is reacting to so you can avoid triggers, plan immunotherapy, and reduce symptoms. ## Who should order it? Anyone with recurrent allergy symptoms (rash, sneezing, GI distress, breathing difficulty) who wants to identify specific triggers without elimination diets or skin testing. ## Biomarkers measured - [Tryptase](https://www.test-well.com/biomarkers/tryptase) ## Price by lab | Lab | Test price | All-in (with $6 fee) | Notes | | --- | --- | --- | --- | | Quest Diagnostics | $71.99 | $77.99 | 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 Tryptase test cost? A Tryptase test costs $71.99 at TestWell — $77.99 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) | $71.99 | $77.99 | 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 34484 · Labcorp test no. 004280. ## How do you prepare? No fasting required. For baseline testing, blood should not be drawn within 24 hours of an allergic reaction. ## Related conditions - Allergic reaction (T78.40) - Allergic rhinitis (J30.9) ## Common questions about the Tryptase test ### How long do Tryptase results take? Most Tryptase 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. ### What sample is collected for the Tryptase? 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 Tryptase cost without insurance? On TestWell, the Tryptase is $71.99. 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. ### Do I need to fast before the Tryptase? No fasting required for the Tryptase. No fasting required. For baseline testing, blood should not be drawn within 24 hours of an allergic reaction. ### Where can I get the Tryptase done? The Tryptase is available at Quest 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=tryptase-test&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 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 - [Alpha-Gal Allergy Test](https://www.test-well.com/tests/alpha-gal-allergy-test) — $54.99 - [Dog & Cat Allergy Test](https://www.test-well.com/tests/dog-and-cat-allergy) — $89.99 - [Latex Allergy Test](https://www.test-well.com/tests/latex-allergy-test) — $39.99 - [Seafood & Shellfish Allergy Test](https://www.test-well.com/tests/seafood-shellfish-allergy) — $114.99 - [Tree Nut & Peanut Allergy Panel](https://www.test-well.com/tests/tree-nut-peanut-allergy) — $122.99 - [All Allergy tests](https://www.test-well.com/tests/category/allergy) - [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/tryptase-test 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.