--- title: D-Dimer Test type: biomarker url: "https://www.test-well.com/biomarkers/d-dimer" also_known_as: - d-dimer - d-dimer (quantitative) - d dimer category: Metabolic Health units: - ng/mL - mg/L FEU order_price_usd: 69.99 order_item: D-Dimer order_url: "https://www.test-well.com/tests/d-dimer" reviewed_at: 2026-09-05 --- # D-Dimer > D-Dimer is measured with a standard blood draw; no fasting is needed. A typical reference range is 0.000 – 500 ng/mL. At TestWell it's $69.99 all-in as D-Dimer, results in 1–3 business days, drawn at Quest or Labcorp. An out-of-range result is a prompt to look closer, not a diagnosis. Also known as: d-dimer, d-dimer (quantitative), d dimer. ## Key facts | Fact | Value | | --- | --- | | Units | ng/mL / mg/L FEU | | Sample | Blood draw | | Fasting | Not required | | Results | 1–3 business days | | Price | $69.99 | | Labs | Quest or Labcorp · BioReference in NY/NJ | ## What does D-Dimer measure? A fragment from broken-down clots. Used to rule out clotting disorders like DVT or pulmonary embolism. ## What is the normal range for D-Dimer? | Population | Reference range | | --- | --- | | age 18+ | 0.000 – 500 ng/mL | Reference intervals differ slightly between labs; the range printed on your report is the one to interpret against. Ranges are usually set so 95% of healthy people fall inside them. ## What does a high D-Dimer mean? Often reflects active clotting and breakdown — DVT, PE, recent surgery, infection, pregnancy, or inflammation. ## How do you get tested for D-Dimer? | Order | Type | Price | Includes | | --- | --- | --- | --- | | [D-Dimer](https://www.test-well.com/tests/d-dimer) | Single test | $69.99 | This marker | ## Quest vs Labcorp vs BioReference | Lab | Available | Price | Notes | | --- | --- | --- | --- | | Quest Diagnostics | Yes | $69.99 | Choose Quest at checkout; walk-in patient service centers in every state TestWell serves outside NY and NJ. | | Labcorp | Yes | $69.99 | Choose Labcorp at checkout; walk-in patient service centers in every state TestWell serves outside NY and NJ. | | BioReference (NY & NJ) | Yes | $34.99 | New York and New Jersey orders route here automatically — state rules keep Quest and Labcorp from accepting self-ordered draws. | - [What a high D-Dimer means (causes, symptoms, next steps)](https://www.test-well.com/biomarkers/d-dimer/high) ## Common questions about D-Dimer ### Do I need a doctor's order to test my d-dimer? No. TestWell's licensed physician network reviews and approves your order — usually within minutes. You can place an order online without an in-person visit or a referral from your own doctor. ### How long does it take to get D-Dimer results? Most D-Dimer results are available in 1–3 business days after your specimen arrives at the lab. You'll get an email the moment your results are ready, with everything viewable in your TestWell portal. ### How much does a D-Dimer test cost? Our D-Dimer starts at $69.99. That's the all-in price — no copays, no insurance hoops, no surprise bills. HSA and FSA cards are accepted. ### Do I need to fast before my D-Dimer test? Fasting is not required for the D-Dimer test. You can have your blood drawn any time of day. ### Which lab will process my D-Dimer test? Your test will be processed by Quest Diagnostics, Labcorp, or BioReference depending on which is closest to you and which lab carries the test. All three are CLIA-certified and trusted by hospitals nationwide. You'll choose your lab during checkout from 4,000+ locations. ## Sources - [AACC Lab Tests Online](https://www.testing.com/tests/d-dimer/) - [MedlinePlus (NIH) — D-Dimer Test](https://medlineplus.gov/lab-tests/d-dimer-test/) ## Related biomarkers - [Glucose](https://www.test-well.com/biomarkers/glucose) - [Creatinine](https://www.test-well.com/biomarkers/creatinine) - [eGFR](https://www.test-well.com/biomarkers/egfr) - [BUN](https://www.test-well.com/biomarkers/bun) - [ALT](https://www.test-well.com/biomarkers/alt) - [AST](https://www.test-well.com/biomarkers/ast) - [Reference range lookup tool](https://www.test-well.com/tools/reference-range-lookup) - [Lab unit converter](https://www.test-well.com/tools/lab-unit-converter) - [All biomarkers](https://www.test-well.com/biomarkers) --- Medically reviewed by Youmna DiStefano, MD (Medical Reviewer, TestWell); last reviewed 2026-09-05. Review policy: https://www.test-well.com/reviewers/youmna-distefano-md Canonical page: https://www.test-well.com/biomarkers/d-dimer 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.