A blood sugar test measures glucose in your blood at the time the sample is taken. Doctors use glucose results to screen for diabetes or to see how blood sugar is being managed. The name on your prescription matters because a fasting glucose test, a post-meal test and a random glucose test collect information at different times and are interpreted differently.

For blood sugar testing at Agarwal Diagnostics in Greater Noida West, check which test your doctor requested before arranging your visit. If the prescription lists fasting and post-meal samples, ask the centre how to plan the two collections. The timing of meals and sample collection is part of the test, so confirm the instructions in advance. If you take medicines for diabetes, ask your clinician how to handle them on the day. Let the collection team know when you last ate if your test depends on meal timing.