HOMA IR Score Blood Test | Fasting Glucose and Insulin

What This HOMA IR Lab Test Measures (Fasting Glucose + Fasting Insulin) For Your Insulin Resistance Score

This panel measures your fasting glucose and your fasting insulin from one simple blood draw. Think of glucose as the “fuel” in your blood, and insulin as the “key” that helps fuel get into your cells. Fasting glucose is your body’s overnight “baseline” after no food for hours. Because your liver can make glucose while you sleep, this number can rise even if you didn’t eat sugar.

Fasting insulin shows how hard your body has to work to keep that glucose in a normal range. It’s possible for insulin to run high for a long time before fasting glucose looks clearly abnormal.

With these two numbers, you can calculate a HOMA IR value—often called an insulin resistance score. We also provide a IR calculator so you can quickly turn your results into a clear, simple score.

Why Ordering This HOMA IR Panel Matters For Your Insulin Resistance Score

This test helps spot insulin resistance sooner, when you can still do a lot about it. It can explain why you feel stuck, like cravings, energy crashes after meals, or weight that won’t budge. When fasting insulin is higher than expected, it can mean your body is “using extra keys” to open the same door.

That extra effort can show up before other labs wave a red flag.

• Earlier signal: Fasting insulin can shift before fasting glucose changes much.
• Clearer pattern: The HOMA IR calculation combines both numbers into one insulin resistance score.
• Better context: A normal fasting glucose doesn’t always mean “all clear” if insulin is high.

Why You Should Consider Ordering This Test

This is a practical choice if you want answers, not guesses, about your metabolic health. It’s also a simple starting point if you’re watching prediabetes risk, PCOS concerns, or family history of type 2 diabetes.

If you’ve ever felt like your body is “running on low,” this test can help show one possible reason. And once you have numbers, you can track progress over time, like checking a map instead of walking blindfolded.

• Great for: fatigue after eating, stubborn weight gain, sugar cravings, or “normal labs” that don’t match how you feel.
• Helpful next step: After you receive your HOMA test results from us, use the calculator (see key takeaways) to get your HOMA IR insulin resistance score and discuss results with your clinician.

Labs Included When Ordering Your Fasting Glucose and Fasting Insulin

Test Name	Reference Ranges (No Units)	What This Biomarker Means (Simple)	High / Low Notes
Glucose (Fasting)	65–99	Glucose is the main sugar in your blood that your body uses for energy. Fasting glucose shows your “baseline” sugar level after not eating.	High: High levels of glucose can mean your body is having trouble controlling blood sugar.   Low: Low levels of glucose can happen if your blood sugar drops too much between meals.
Insulin (Fasting)	≤18.4	Insulin is a hormone that helps move glucose from your blood into your cells. Fasting insulin can show how hard your body is working to keep glucose steady.	High: High levels of insulin can be a sign your cells are resisting insulin, so your body makes more.   Low: Low levels of insulin can happen if your body is making less insulin than expected.

References can change over time. Check the lab for the most recent ranges.

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According to Aliyu et al. (2025) on PubMed: Studies show HOMA IR can separate “more insulin resistant” from “more insulin sensitive” groups fairly well in some populations.

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Fasting Glucose and Fasting Insulin FAQ

Is There Fasting Glucose and Fasting Insulin Testing Near Me?

Yes. After ordering, you can pick a nearby draw location using the patient service center locator.

If getting out the door is hard, you can also look into mobile phlebotomy options where available through the link above.

Do I Need To Fast for the HOMA IR Test?

Yes. For the cleanest insulin resistance score and HOMA IR, fast for about 8–12 hours, with water only.

If you’re unsure about meds or supplements, ask your clinician before ordering so your results aren’t confusing.

What Is The Cost Of The Test?

The price you pay includes the lab processing and the patient service center sample collection fee, with no surprise add-ons.

Can You Help Me Interpret My Test Results?

Your treating doctor should make medical decisions based on your results and your full health picture.

But we can help you understand what the numbers may mean through our educational One-On-One Results Review.

How Often Should I Retest?

Many people recheck in about 8–12 weeks after lifestyle or medication changes, or every 6–12 months for routine tracking.

Retesting matters because insulin and glucose can improve (or worsen) before you “feel” the change.

How Accurate Is The Test?

Fasting glucose is measured using an enzymatic spectrophotometry method, and insulin is measured using an immunoassay.

For the HOMA IR insulin resistance score, published cutoffs have reported around 80% sensitivity and about 59% specificity in one study population, so it’s a helpful screening tool, not a standalone diagnosis.

All testing is performed at a CLIA-Certified lab.

My Doctor Won’t Order Fasting Insulin. Can I Still Order?

Yes, some people run into this, especially if their fasting glucose looks “fine” on paper.

If you want clearer answers, ordering fasting insulin with fasting glucose can add context that your routine labs may miss.

What If My Glucose Is Normal But Insulin Is High?

This can happen when your body is still able to keep blood sugar in range, but it needs extra insulin to do it.

That pattern is one reason people order this panel and use our calculator to estimate HOMA IR.

Can I Calculate HOMA-IR Myself?

Yes. HOMA IR is calculated from fasting glucose and fasting insulin using a standard formula.

We make it easier by providing a calculator so you can get your insulin resistance score quickly and consistently.

How Fast Will I Get Results After Ordering?

Turnaround time can vary by location and day, but testing is typically processed quickly (2-3 days) once your sample is received.

If timing matters (like a new plan with your clinician), order early in the week and book the first appointment you can.

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