glucose-in-urine-test
Reviewed
A glucose in urine test measures the amount of glucose in your urine. Normally, urine contains very little or no glucose because your kidneys return glucose to your bloodstream. High levels may suggest diabetes, gestational diabetes, or a rare kidney condition, but this test alone cannot diagnose any condition.
Preparation and collection
You usually don't need any special preparations. Tell your provider about all medicines and supplements you take, as some may affect results. Do not stop any medicine without talking to your provider first.
Understanding this test
Use the reference interval and units printed by the laboratory that performed the test. A result outside that interval is not a diagnosis by itself, and a result inside it does not rule out every condition. Your symptoms, history, medicines, timing, and related tests can change what the result means.
- A urine glucose test is not as accurate as a blood glucose test for diagnosing or monitoring diabetes. A normal result does not rule out diabetes—you can have high blood glucose with little or no glucose in your urine.
- This test alone cannot diagnose any condition. Follow-up blood tests are usually needed. Certain medicines, vitamin C, and eating a large meal may affect results.
What to do next
If your result is abnormal, your provider will order other tests (such as blood glucose tests) to help make a diagnosis. Ask your provider what your results mean and whether you need a blood glucose test for more accurate results.