About Fasting Blood Sugar (FBS)
Fasting Blood Sugar (FBS) measures your glucose level after 10–12 hours of overnight fasting. It is the primary test for diagnosing diabetes (126 mg/dL+) and prediabetes (100–125 mg/dL). Results in just 6 hours from NABL-certified labs.
The Fasting Blood Sugar (FBS) test is the most widely used first-line test for diabetes diagnosis and monitoring. By measuring blood glucose after an overnight fast, it removes the variable of recent food intake and gives a reliable baseline reading of your body's glucose regulation.
Normal Values and What They Mean
Below 100 mg/dL is normal. Between 100 and 125 mg/dL indicates prediabetes — your blood sugar is elevated but has not yet reached diabetic levels. At 126 mg/dL or above on two separate occasions, diabetes is diagnosed. In India, over 77 million people live with Type 2 diabetes; another 136 million are in the prediabetic range.Why FBS Should Be Combined with HbA1c
FBS reflects only the past few hours. A person can have a normal fasting glucose but elevated post-meal spikes or an HbA1c in the prediabetic range. For complete diabetes screening, booking FBS alongside HbA1c gives a far more accurate picture — FBS for today's value, HbA1c for the 3-month average.Preparation and Process
Overnight fasting of 10–12 hours required. Water is permitted. Avoid tea, coffee, and medications unless directed by your doctor. Our phlebotomist visits your home between 7–10 AM. Results are emailed within 6 hours — one of the fastest turnarounds in India for a home-collected test.Parameters Tested
✓ Glucose — Fasting
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Home Collection
Free across Hyderabad
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Report Time
6 Hours
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Lab
Thyrocare (NABL)
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Fasting
Required (10–12 hrs)
Frequently Asked Questions
What does the Fasting Blood Sugar (FBS) test measure? +
The Fasting Blood Sugar (FBS) measures: Glucose — Fasting.
Is fasting required for Fasting Blood Sugar (FBS)? +
Yes, 10–12 hours fasting is required before sample collection.
How much does Fasting Blood Sugar (FBS) cost in Hyderabad? +
The Fasting Blood Sugar (FBS) costs ₹97 in Hyderabad with free home sample collection.
When will I get my Fasting Blood Sugar (FBS) results? +
Reports are delivered to your email within 6 hours of sample collection.
Is home sample collection available in Hyderabad? +
Yes, free home collection is available across Hyderabad for all blood tests.