Blood Sugar Fasting
- Category
- Diabetes
- Sample
- Blood sample taken from a vein in your arm
- Reports () Terms & Conditions Report time varies with time of sample collection.
- In 2 days
- Fasting
- Required
- Fasting Hours
- 10-12 hours
- Age
- 5+ Years
What Is This Test?
Measures your blood glucose (sugar) after an overnight fast of 10–12 hours.
Why this test is performed?
Screens for and helps diagnose prediabetes and diabetes, and monitors treatment. Generally, below 100 mg/dL is normal, 100–125 mg/dL suggests prediabetes, and 126 mg/dL or more on two occasions suggests diabetes.
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).
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.
- Report time: In 8 days
- No fasting
ZnT8 (ZINC TRANSPORTER 8) ANTIBODY Test
Diabetes
Blood sample taken from a vein in your arm
₹4,400
₹8,595
48% off
- Report time: In 2 days
- No fasting
- Report time: In 7 days
- No fasting
- Report time: In 2 days
- No fasting
Frequently asked questions
Plain water is fine. Avoid tea, coffee, juice, chewing gum and smoking until the sample is taken.
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 10–34 hours after the sample reaches the lab. You will receive the report online.
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