Current promotion
Insulin Resistance Testing: Glucose Tolerance & Insulin Response
Go beyond a single fasting reading with multi-specimen glucose tolerance and insulin response testing.
Affiliate disclosure: we earn a commission when you purchase lab tests through links on this site, at no extra cost to you. Learn more
Advanced Blood Sugar Monitoring panels from $23.16 to $296.76 with the 20% promotion applied (promotional pricing at time of writing; list prices $28.95-$370.95).
At a glance
Insulin resistance testing measures how your body responds to glucose over time, using multi-specimen glucose tolerance tests, insulin response to glucose, adiponectin, proinsulin, and hemoglobin A1c rather than a single fasting reading. These Advanced Blood Sugar Monitoring panels are for adults who want a detailed picture of glucose metabolism and insulin function, including antibody markers associated with autoimmune forms of diabetes. Four tiers range from a simple glucose-plus-A1c check to a seven-test comprehensive panel.
Best suited for
- Adults with normal fasting glucose who want to see how their body handles a glucose load over time
- People tracking markers associated with insulin resistance alongside diet, training, or weight changes
- Those with a family history of diabetes who want a more detailed baseline than glucose alone
- Anyone whose doctor has suggested glucose tolerance or insulin response testing
- Self-trackers who want antibody and hormone context, adiponectin, proinsulin, GAD-65, IA-2, to discuss with their physician
What's included
Advanced Blood Sugar Monitoring - Comprehensive
7 tests, 17 biomarkers: adiponectin, 5-specimen glucose tolerance, GAD-65 and IA-2 antibodies, HbA1c, 4-specimen insulin response, proinsulin
Advanced Blood Sugar Monitoring - Advanced
5 tests, 14 biomarkers: adiponectin, 4-specimen glucose tolerance, GAD-65 antibody, HbA1c, 4-specimen insulin response
Advanced Blood Sugar Monitoring - Basic Plus
4 tests, 10 biomarkers: 3-specimen glucose tolerance, GAD-65 antibody, HbA1c, 3-specimen insulin response
Advanced Blood Sugar Monitoring - Basic
2 tests: glucose and hemoglobin A1c
Diabetes Management - Comprehensive
9 tests, 72 biomarkers: adds kidney, lipid, and inflammation markers for whole-body monitoring
Diabetes Management - Advanced
7 tests, 68 biomarkers: glucose control, kidney function, lipid metabolism, and insulin levels
Diabetes Management - Basic Plus
5 tests, 65 biomarkers: glucose control, kidney function, blood health, and lipid metabolism
Diabetes Management - Basic
3 tests, 25 biomarkers: metabolic status, glucose control, and kidney function
Deep-dive the key markers: Fasting Glucose, HbA1c, Fasting Insulin, eGFR, LDL-C, HDL-C, Triglycerides, hs-CRP
Key biomarker ranges
Commonly used adult reference ranges for markers this panel measures, labs vary, so always interpret results against your lab's stated ranges and with your doctor.
Commonly used reference ranges place fasting glucose at 70–99 mg/dL; results vary with sleep, stress, and recent illness, and labs differ slightly.
| Zone | Range |
|---|---|
| Low | 50–70 mg/dL |
| Optimal | 70–100 mg/dL |
| Prediabetic range | 100–126 mg/dL |
| Diabetic range | 126–160 mg/dL |
Commonly used reference ranges place HbA1c below 5.7%; conditions affecting red blood cells can skew results, so labs and clinicians interpret in context.
| Zone | Range |
|---|---|
| Optimal | 4–5.7 % |
| Prediabetic range | 5.7–6.5 % |
| Diabetic range | 6.5–10 % |
Commonly used reference ranges accept up to ~25 µIU/mL, but many clinicians view single-digit fasting insulin as the more informative target; assays vary by lab.
| Zone | Range |
|---|---|
| Low | 0–2 µIU/mL |
| Optimal | 2–10 µIU/mL |
| Above optimal | 10–25 µIU/mL |
| High | 25–30 µIU/mL |
The importance of testing
A single fasting glucose reading can look unremarkable while telling you little about how your body actually processes sugar. Multi-specimen glucose tolerance testing draws blood at several points after a glucose challenge, and pairing it with an insulin response test shows how much insulin your body produces to keep those glucose values in range, the dynamic view that a one-off snapshot misses.
The supporting markers each add a distinct angle. Hemoglobin A1c reflects average glucose over roughly three months, adiponectin is a hormone involved in insulin sensitivity, and proinsulin offers a window into insulin production. The comprehensive tier also includes GAD-65 and IA-2 antibodies, markers associated with autoimmune forms of diabetes, which can be a useful data point to review with your doctor when the type of blood sugar issue is unclear.
Tracked over time, these results show direction, not just position. Repeating the same panel after changes to diet, training, sleep, or a doctor-guided plan lets you see whether glucose handling and insulin response are shifting, and gives your healthcare provider concrete numbers to work from. The partner currently discounts all tiers by 20%, which makes repeat testing more practical.
Promo code
ULTADBSSave 20% with code ULTADBS, current promotion; confirm final pricing on the partner page.
Ready to get your numbers? Order online, visit a nearby draw site, and receive private results to review with your doctor.
Order NowFrequently asked questions
What does insulin resistance testing measure?
It measures how your glucose and insulin levels behave over time, not just at a single fasting moment, using multi-specimen glucose tolerance tests and an insulin response to glucose test. The larger panels add adiponectin, proinsulin, hemoglobin A1c, and GAD-65 and IA-2 antibodies, giving a broad view of glucose metabolism and insulin function to review with your doctor.
What is a multi-specimen glucose tolerance test?
It is a test in which blood is drawn several times, 3, 4, or 5 specimens depending on the panel tier, around a glucose challenge, so the lab can chart how your blood sugar changes over time. Paired with the insulin response test, it shows both the glucose curve and the insulin your body produced to manage it.
Do these panels confirm diabetes or insulin resistance?
No, these panels measure and track markers associated with glucose metabolism and insulin function; they are not intended to confirm any condition. Results are delivered to you as data points to review with your doctor, who can interpret them in the context of your health history and decide whether follow-up is needed.
Can I order this testing without a doctor's visit?
Yes, you can add a panel to your cart and order directly online through the partner page without scheduling a doctor's appointment first. Ulta Lab Tests is a direct-to-consumer service: you order, visit a local draw location for your specimens, and receive the results yourself to share with your physician.
Is this testing available in every US state?
No, direct-to-consumer lab testing is restricted or prohibited in New York, New Jersey, and Rhode Island, so residents of those states may be blocked at the partner's checkout. Elsewhere in the US, you can typically order online and complete the draws at a nearby patient service center.
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