Fasting urine glucose test
Quick answer: This test checks a urine sample passed after fasting for glucose (sugar). It is a simple screen that is usually done with a blood sugar test, as blood tests are more reliable for diabetes.
- SampleUrine
- TakesA few minutes to give the sample
- Before the testGive a urine sample after an overnight fast, as instructed.
How the test is done
- 1You fast as instructed, usually overnight
- 2You pass a urine sample into a clean container
- 3The sample is tested for glucose
- 4A blood sugar test is often done at the same time
What your results can mean
Reading your report
Sugar in urine needs a blood sugar test to confirm, so discuss your result with your doctor.
If the result is outside the usual range
Glucose in fasting urine can be seen when blood sugar is high, as in diabetes. It can also appear with a low kidney threshold, in pregnancy, or with some diabetes medicines that work through the kidneys.
Who usually has this test
People being screened for diabetes along with a blood sugar test.
Risks and aftercare
There is no physical risk; eat normally after giving the sample.
Names and options
Also called: urine sugar, fasting urine sugar
Listed by the hospital as
- FASTING URINE GLUCOSE
Questions about this test
Is a urine sugar test enough to diagnose diabetes?
No. Blood tests such as fasting sugar or HbA1c are needed. Urine sugar can be normal even when blood sugar is raised.
Why can sugar appear in urine during pregnancy?
The kidneys let more glucose through in pregnancy. Your doctor may check blood sugar to be sure.
Can diabetes medicines cause sugar in urine?
Yes. Some newer diabetes medicines work by making the kidneys pass sugar into urine. Tell your doctor what you take.
Related tests
Tamara Hospital & IVF Centre, Rajajinagar
34/3, 10th Cross Road, opp. Vardhaka Sardar Patel School, 1st N Block, 2nd Stage, Rajajinagar, Bengaluru 560010
The hospital is open 24 hours. Call before you come to check the timing for your scan or sample collection.
Get directions ↗IVF Pulse fertility care at Tamara Hospital →
Reception
Waiting area
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This page explains each test in general terms so you know what to expect. It is not medical advice: your doctor decides which tests you need and what your results mean. Reference ranges differ between laboratories. Updated 4 November 2026.