LP-IR Score levels: what's normal, high and low
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.
Medically reviewed by Youmna DiStefano, MD · Last reviewed October 2026
The short answer
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.
- Units
- / score
- Sample
- Blood draw
- Fasting
- 8–12 hours
- Results
- 3–5 business days
- Price
- $70.99
- Labs
- Labcorp
LP-IR Score Reference Range
These are the typical adult reference ranges used by major US labs. Your report will include the specific range used by the lab that processed your sample.
| Population | Range |
|---|---|
| age 18+ | 0.000 – 45.0 |
Reference ranges are educational. Always interpret your result with the specific range printed on your lab report and discuss anything outside the range with a clinician.
Have a result in hand? analyze it with your AI assistant using these reviewed ranges, or run it through our explainer. Tools: look up another marker's range · convert lab units
What your LP-IR Score result may mean
Scores toward the upper end suggest insulin resistance — read alongside fasting insulin, A1c and triglycerides.
Educational only — not a diagnosis. Many factors can influence a single result. Discuss anything that concerns you with a healthcare provider.
How do you get a LP-IR Score test?
Order online, a licensed physician reviews the requisition, and you walk into a nearby lab for the draw. LP-IR Score is available on its own or inside these panels — panels cost less per marker when you want the fuller picture.
| Option | Includes | Price |
|---|---|---|
| Advanced Cholesterol Particle Test (NMR) | This marker only | $70.99 |
| Men's Total Body Advanced Panel | 65 tests | $999.99 |
| Women's Total Body Advanced Panel | 65 tests | $999.99 |
Quest vs. Labcorp for LP-IR Score: which lab should you pick?
Both are CLIA-certified national labs and the result is clinically equivalent, so pick whichever location is closer. Your report will print that lab's own reference range, which can differ slightly from the table above.
| Lab | Available | Price |
|---|---|---|
| Quest Diagnostics | No | — |
| Labcorp | Yes | $70.99 |
| BioReference (NY & NJ) | No | — |
Need help choosing a location? Use the lab finder to see draw sites near your ZIP.
Related Diabetes & Blood Sugar biomarkers
Markers commonly tested alongside LP-IR Score.
Frequently asked
What does a high LP-IR Score mean?
Scores toward the upper end suggest insulin resistance — read alongside fasting insulin, A1c and triglycerides. A single result above the reference range is a prompt to look closer with a clinician — often a repeat test and related markers — not a diagnosis on its own.
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.
Ready to test your lp-ir score?
Order in two minutes, get physician-approved, and visit a lab the same day. Starts at $70.99.