--- title: Glucose, Fasting Test type: test id: glucose-fasting url: "https://www.test-well.com/tests/glucose-fasting" price_usd: 24.99 lab_fee_usd: 6 all_in_usd: 30.99 cpt: 82947 category: Diabetes & Blood Sugar sample: Blood draw fasting_required: true results_in: "1–3 business days" labs: - Quest - BioReference orderable: true reviewed_at: 2026-09-14 order_url: "https://www.test-well.com/cart?add=glucose-fasting&utm_source=ai_agent&utm_medium=markdown" --- # Glucose, Fasting Test > Single fasting blood sugar measurement — a quick diabetes and prediabetes screen, measured from a standard blood draw. At TestWell it costs $24.99 plus a $6 lab fee, requires an 8–12 hour fast, and results post in 1–3 business days. Physician-authorized with no doctor's visit or insurance needed; draw at Quest. ## Key facts | Fact | Value | | --- | --- | | Price | $24.99 + $6 lab processing fee per order ($30.99 all-in for this test alone) | | CPT code | 82947 | | Sample | Blood draw | | Fasting | Yes — 8–12 hours | | Results | 1–3 business days | | Labs | Quest Diagnostics, 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 Glucose, Fasting test tell you? Single fasting blood sugar measurement — a quick diabetes and prediabetes screen. Fasting glucose measures the amount of sugar in your blood after an overnight fast. It's one of the simplest tests for screening diabetes and prediabetes. A fasting glucose below 100 mg/dL is normal, 100–125 mg/dL indicates prediabetes, and 126 mg/dL or above suggests diabetes. While simpler than A1c, it reflects only a single point in time. **Clinical use:** Diabetes and blood-sugar testing identifies insulin resistance, pre-diabetes, and diabetes early — when lifestyle changes still have the highest impact. ## Who should order it? Adults with risk factors for diabetes: family history, overweight/obesity, sedentary lifestyle, prior gestational diabetes, or signs like increased thirst, fatigue, or unexplained weight changes. ## Biomarkers measured - [Glucose](https://www.test-well.com/biomarkers/glucose) ## Price by lab | Lab | Test price | All-in (with $6 fee) | Notes | | --- | --- | --- | --- | | Quest Diagnostics | $24.99 | $30.99 | Choose at checkout; walk-in patient service centers nationwide (not NY/NJ) | | BioReference (NY & NJ) | $25.99 | $31.99 | 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 Glucose, Fasting test cost? A Glucose, Fasting test costs $24.99 at TestWell — $30.99 all-in when ordered alone, because the $6 lab processing fee is charged once per order, with no draw fee or physician fee added. Ordered directly from the labs' own consumer sites, the same test lists at $39.00 at Labcorp OnDemand (list prices checked Sep 12, 2026). Hospital outpatient labs typically bill around $60.00 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) | $24.99 | $30.99 | Includes the one $6 lab processing fee, charged once per order | | Labcorp OnDemand (Labcorp's own site) | $39.00 | $39.00 | [list price checked 2026-09-12](https://www.ondemand.labcorp.com/lab-tests/fasting-glucose-test) | | Hospital outpatient lab, self-pay (typical) | $60.00 | $60.00 | Reference figure; hospital charges vary widely by facility and are often higher | Lab test codes: Quest test code 484 · Labcorp test no. 001818 · BioReference code 0095-0. ## How do you prepare? Fasting for 8–12 hours is required. Water is okay. ## Related conditions - [Type 2 diabetes mellitus](https://www.test-well.com/conditions/diabetes-screening) (E11.9) - Prediabetes (R73.03) ## Common questions about the Glucose, Fasting test ### How long do Glucose, Fasting results take? Most Glucose, Fasting results are available in 1–3 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 Glucose, Fasting? 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 Glucose, Fasting cost without insurance? On TestWell, the Glucose, Fasting is $24.99. Quest Direct lists comparable tests at $20. Walk-in hospital labs typically bill $60 or more without insurance. Insurance is not required — pay one all-in price. ### Do I need to fast before the Glucose, Fasting? Yes — fasting for 8–12 hours is required. Water is okay. Following the prep instructions gives you the most accurate result. ### Where can I get the Glucose, Fasting done? The Glucose, Fasting 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=glucose-fasting&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, BioReference (NY & NJ) patient service center — no appointment needed at most sites. 5. Results post to your TestWell portal in 1–3 business days with reference ranges and flags. ## Related - [A1c Levels Explained: Normal Ranges, Prediabetes Cutoffs, and What Can Skew Your Number](https://www.test-well.com/guides/a1c-levels-explained) - [Diabetes Screening Panel](https://www.test-well.com/tests/diabetes-screening-panel) — 3 tests · $59.99 - [Pre-Diabetes Panel](https://www.test-well.com/tests/pre-diabetes-panel) — 5 tests · $89.99 - [Glucose](https://www.test-well.com/tests/glucose-basic) — $14.99 - [All Diabetes & Blood Sugar tests](https://www.test-well.com/tests/category/diabetes-blood-sugar) - [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/glucose-fasting 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.