HOMA- IR With C Peptide Test
- Category
- Diabetes
- Sample
- Blood sample taken from a vein in your arm
- Reports () Terms & Conditions Report time varies with time of sample collection.
- In 3 days
- Fasting
- Required
- Fasting Hours
- 10-12 hours
- Age
- 5+ Years
What Is This Test?
Estimates insulin resistance and the pancreas's insulin output using fasting glucose and fasting C-peptide (a marker released along with insulin).
Why this test is performed?
Useful for assessing insulin resistance and beta-cell function, especially in people already taking insulin, where a direct insulin measurement would be misleading.
Who should take this test?
Excessive thirst, frequent urination, tiredness, slow-healing wounds, weight gain/obesity, family history of diabetes, adults over 30 and people with diabetes.
Test Preparation
Fast for 10–12 hours (water allowed).
What's included 5 parameters
Insulin Sensitivity (1)
- Insulin Sensitivity
Beta Cell Function (1)
- Beta Cell Function
Glucose Fasting (1)
- Glucose Fasting
C Peptide (1)
- C Peptide
Insulin Fasting (1)
- Insulin-Fasting
Medical disclaimer · for information only, not medical advice
This article is for general information and education only. It is not medical advice, does not create a doctor–patient relationship, and is not a substitute for consultation with a qualified doctor who has assessed your individual situation. Never delay seeking medical advice because of something you have read here.
In a medical emergency, call 112, or 108 for an ambulance where that service operates, or go to your nearest emergency department. If you are in mental health distress, Tele-MANAS is free and available 24×7 on 14416.
Read our Editorial Policy and Medical Review Process.
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Frequently asked questions
C-peptide reflects only the insulin your own pancreas makes, so it is not affected by insulin injections.
Yes. Fast for 10–12 hours before the sample (plain water is allowed). An early-morning slot makes this easy. Take regular medicines as advised by your doctor.
Blood sample taken from a vein in your arm.
Usually within 31–55 hours after the sample reaches the lab. You will receive the report online.
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