--- title: LP-IR Score Test type: biomarker url: "https://www.test-well.com/biomarkers/lp-ir-score" also_known_as: - lp-ir score - lp ir score - lpir score - lipoprotein insulin resistance score category: Diabetes & Blood Sugar units: - "" - score order_price_usd: 70.99 order_item: Advanced Cholesterol Particle Test (NMR) order_url: "https://www.test-well.com/tests/nmr-lipoprofile" reviewed_at: 2026-10-09 --- # LP-IR Score > LP-IR Score is measured with a standard blood draw after an 8–12 hour fast. A typical reference range is 0.000 – 45.0 . At TestWell it's $70.99 all-in as Advanced Cholesterol Particle Test (NMR), results in 3–5 business days, drawn at Labcorp. An out-of-range result is a prompt to look closer, not a diagnosis. Also known as: lp-ir score, lp ir score, lpir score, lipoprotein insulin resistance score. ## Key facts | Fact | Value | | --- | --- | | Units | / score | | Sample | Blood draw | | Fasting | 8–12 hours | | Results | 3–5 business days | | Price | $70.99 | | Labs | Labcorp | ## What does LP-IR Score measure? A 0–100 insulin-resistance score derived from lipoprotein particle sizes and counts. Higher scores indicate more insulin resistance; it often rises years before fasting glucose or A1c change. ## What is the normal range for LP-IR Score? | Population | Reference range | | --- | --- | | age 18+ | 0.000 – 45.0 | 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 LP-IR Score mean? Scores toward the upper end suggest insulin resistance — read alongside fasting insulin, A1c and triglycerides. ## How do you get tested for LP-IR Score? | Order | Type | Price | Includes | | --- | --- | --- | --- | | [Advanced Cholesterol Particle Test (NMR)](https://www.test-well.com/tests/nmr-lipoprofile) | Single test | $70.99 | This marker | | [Men's Total Body Advanced Panel](https://www.test-well.com/tests/mens-total-body-advanced-panel) | Panel | $999.99 | 65 tests | | [Women's Total Body Advanced Panel](https://www.test-well.com/tests/womens-total-body-advanced-panel) | Panel | $999.99 | 65 tests | ## Quest vs Labcorp vs BioReference | Lab | Available | Price | Notes | | --- | --- | --- | --- | | Quest Diagnostics | No | — | Not offered through Quest for this test. | | Labcorp | Yes | $70.99 | Choose Labcorp at checkout; walk-in patient service centers in every state TestWell serves outside NY and NJ. | | BioReference (NY & NJ) | No | — | Not available in NY/NJ for this test. | ## Common questions about LP-IR Score ### Do I need a doctor's order to test my lp-ir score? 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 LP-IR Score results? Most LP-IR Score 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 LP-IR Score test cost? Our Advanced Cholesterol Particle Test (NMR) starts at $70.99. 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 LP-IR Score test? Yes — for the most accurate result, fast for 8–12 hours before your blood draw. Water is fine; coffee, food, and supplements are not. Your prep instructions will be included with your order. ### Which lab will process my LP-IR Score 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 - [Testing.com (AACC) — Insulin Resistance](https://www.testing.com/tests/insulin/) ## Related biomarkers - [Hemoglobin A1c](https://www.test-well.com/biomarkers/hemoglobin-a1c) - [Fasting Insulin](https://www.test-well.com/biomarkers/fasting-insulin) - [C-Peptide](https://www.test-well.com/biomarkers/c-peptide) - [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 2026-10-09. Review policy: https://www.test-well.com/reviewers/youmna-distefano-md Canonical page: https://www.test-well.com/biomarkers/lp-ir-score 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.