Does this test have other names?
What is this test?
A urine glucose test is used to indirectly determine whether your levels of glucose,
or blood sugar, are within a healthy range. It's used to monitor both type 1 and type
If your blood glucose rises above normal, your kidneys get rid of the extra glucose
in your urine. That's why a urine glucose test may be able to determine whether your
blood glucose is too high.
Although easier to perform than a blood test, a urine test for glucose is not as accurate
as a blood test. Urine tests are usually used only when blood testing for glucose
is difficult or impossible.
Why do I need this test?
You may need this test if you have signs of diabetes. These include increased thirst,
unexplained weight loss, increased urination, tiredness, blurred vision, and sores
that don't heal. Sometimes people with prediabetes or diabetes don't have any symptoms.
Your healthcare provider may check your glucose levels if you have risk factors for
diabetes, including being overweight or obese, being physically inactive, having high
blood pressure, having high cholesterol, or having a family history of diabetes. If
you do not have these risk factors, but are age 45 or older, you should also be checked
for diabetes at least every three years as long as your results are normal.
If you are pregnant and are at risk of developing gestational diabetes, you may be
screened frequently during and after your pregnancy.
What other tests might I have along with this test?
A urine glucose test may be done along with more sensitive and accurate blood tests.
A urine test alone is not typically used to screen for or diagnose diabetes. Other
tests that are used to screen for or diagnose diabetes or monitor blood glucose include
blood glucose and A1c blood testing. Also, because heart health is so closely tied
to diabetes, regular checks of blood pressure, cholesterol, and triglycerides are
What do my test results mean?
Test results may vary depending on your age, gender, health history, the method used
for the test, and other things. Your test results may not mean you have a problem.
Ask your healthcare provider what your test results mean for you.
Typically, urine glucose testing involves checking the color of a test strip to see
if your glucose is too high. Depending on the results, you may have potential blood
sugar problems that need more testing or management.
How is this test done?
A healthcare provider will usually test your urine glucose only if a blood test cannot
If you need to self-monitor urine glucose levels, your healthcare provider will likely
give you test strips or tell you which ones to buy. Self-monitoring urine glucose
levels involves holding a test strip under a stream of urine. Then, after a set amount
of time, you check the color of the urine strip to figure out your glucose levels.
Does this test pose any risks?
The test poses no known risks.
What might affect my test results?
Urine glucose tests are not as accurate as blood glucose tests. Many things can cause
false-positives or false-negatives. For instance, the test actually reflects what
your blood glucose level was a few hours earlier, so it might not be very accurate.
Other factors that can affect your test results include certain medicines and vitamin
C. Even the light that the test strip is checked under can lead to a false reading.
Because of all these issues, a blood glucose test is done whenever possible.
How do I get ready for this test?
You don't need to prepare for this test. Your healthcare provider will give you specific
instructions on when to collect or test your urine and what to do before and after
each collection. Be sure your healthcare provider knows about all medicines, herbs,
vitamins, and supplements you are taking. This includes medicines that don't need
a prescription and any illicit drugs you may use.