Insulin Response to Glucose 5 Hours Test
Short Name: Insulin Response Test 5H
Also known as: 5-hour glucose tolerance test with insulin, Extended glucose tolerance test, Insulin sensitivity test
Insulin Response to Glucose 5 Hours Test test available at DNA Labs India for ₹10,500. Uses Chemiluminescent Microparticle Immunoassay, Hexokinase on Plasma from Grey Top tube and Serum from SST samples. Results in Results available within 24-48 hours after test completion.. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr Ramarao Paidisetty
Consultant Biochemist · Reg: 21504
Last reviewed: September 7, 2026
Overview
To assess insulin resistance and diagnose diabetes by measuring blood glucose and insulin levels over 5 hours after glucose ingestion.
- Test Code
- 1113
- Price
- ₹10,500
- Sample Type
- Plasma from Grey Top tube and Serum from SST
- Result Time
- Results available within 24-48 hours after test completion.
- Fasting Required
- Yes
- Method
- Chemiluminescent Microparticle Immunoassay, Hexokinase
Sample Collection
Overnight fasting is mandatory for at least 8-12 hours before the test.
Method: Venipuncture
Laboratory Analysis
Blood samples are drawn at baseline and at 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, and 5.0 hours after glucose administration.
Report Delivery
Resume normal activities and diet; monitor for any dizziness or discomfort and consult doctor if needed.
Timeline: Results available within 24-48 hours after test completion.
Patient Instructions
About This Test
Who Should Get This Test
To assess insulin resistance and diagnose diabetes by measuring blood glucose and insulin levels over 5 hours after glucose ingestion.
How to Prepare
- Fast overnight (8-12 hours)
- Dissolve 82.5g glucose monohydrate in 300mL water for adults
- Administer glucose solution orally over 5 minutes
- Draw blood samples at specified intervals
- Label each container with time drawn and tests required
Doctor's Notes
Reviewed by Dr Ramarao Paidisetty — MBBS, MD (Biochemistry) · Reg. No. 21504
"This test is valuable for assessing beta cell function and insulin sensitivity in patients with suspected diabetes or insulin resistance."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Insufficient sample volume
- Improper labeling
- Sample not refrigerated or frozen as required
Understanding Your Results
Glucose and insulin levels return to normal within 5 hours, indicating proper insulin sensitivity.
Elevated insulin levels with high glucose levels suggest the body is not responding effectively to insulin.
Persistently high glucose levels indicate impaired glucose metabolism and possible diabetes.
Consult a doctor if you experience symptoms of diabetes, have abnormal test results, or have risk factors such as obesity or family history.
Limitations
- ⚠Results may vary based on individual physiology
- ⚠Not definitive for all types of diabetes
- ⚠Requires multiple blood draws over 5 hours
Risks & Considerations
- ●Minor bruising at blood draw site
- ●Dizziness or nausea from glucose solution
- ●Rare allergic reactions
Interfering Factors
- ●Recent carbohydrate intake
- ●Medications affecting glucose metabolism
- ●Physical stress or illness
- ●Smoking or alcohol consumption
Frequently Asked Questions
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