Average blood glucose over ~3 months
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Diabetes tests compared
One shows your average sugar over 3 months, the other a single morning snapshot. Here's which to book, and when.
The bottom line
For screening or a diabetes review, HbA1c is the more useful single test — it reflects your average blood sugar over about three months and needs no fasting. A fasting blood sugar is cheaper and reads today's level, useful early in pregnancy, when adjusting medication, or alongside HbA1c. For a first diabetes check, most people are best served by HbA1c; add fasting sugar if your doctor wants a same-day value.
You want a screening or 3-monthly diabetes review and would rather not fast.
See price & bookPick Fasting Blood SugarYou need today's level, are pregnant, or your doctor is titrating medication.
See price & bookBoth tests measure blood sugar, but over very different time windows. HbA1c captures how much sugar has been sticking to your red cells over roughly the last three months, so it is not thrown off by one heavy meal or a stressful morning. Fasting blood sugar reads your level after an overnight fast — a clean single-point snapshot, but only for that moment.
Because HbA1c needs no fasting, it is the more convenient screening test and the standard way to track long-term control. Fasting sugar stays valuable when a same-day number matters. Your doctor often uses them together.
| HbA1c 3-month average · no fasting | Fasting Blood Sugar Today's level · 8–10h fasting | |
|---|---|---|
| What it measures | Average sugar over ~3 months | Sugar at a single fasting moment |
| Fasting needed | No | Yes, 8–10 hours |
| Best for | Screening + long-term control | Same-day snapshot, pregnancy |
| Affected by one meal | No | Yes |
| Typical price band | Mid | Lowest |
| Diagnoses diabetes on its own | Yes (with confirmation) | Yes (with confirmation) |
Average blood glucose over ~3 months
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Heads up: Can read falsely low in recent blood loss, pregnancy or some anaemias
Blood glucose after an overnight fast
Save ₹270
Heads up: One reading only — affected by illness, stress and last night's meal
Or get everything in one panel
Quarterly diabetes-monitoring bundle: HbA1c, FBS, PPBS, lipid profile, creatinine — single home visit
Free home collection
A phlebotomist visits at your chosen time.
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Reports to your dashboard
Digital reports, usually within hours.
CBC vs Full Body Checkup
A CBC is one focused blood test. A full body checkup screens many organs at once. Here's which fits your reason for testing.
Lipid Profile vs Apolipoprotein B
The standard lipid profile covers most people. ApoB is a sharper cardiac-risk marker for specific situations. Here's when it's worth it.
This page is general information to help you choose a test, not a diagnosis or medical advice. Lab results should be interpreted by a doctor alongside your symptoms and history.