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    Uric Acid in Urine

    What Affects the Test

    Test results might not be accurate if you don't collect exactly 24 hours of urine.

    There are many things that can cause your level of uric acid to be too high or too low.

    High values

    High uric acid levels may be caused by conditions such as:

    High levels may also be caused by:

    Low values

    Low uric acid levels may be caused by:

    • Gout.
    • Kidney damage or disease.
    • Folic acid deficiency or lead poisoning.
    • Not eating enough protein.
    • Some medicines, such as allopurinol, insulin, some diuretics, and high levels of aspirin.
    • Drinking alcohol during the collection period.

    What To Think About

    • Having a high uric acid level doesn't always mean you have gout. You won't need treatment as long as you don't have symptoms.
    • If you have kidney disease or have had a problem with kidney stones, your doctor may start treatment with a medicine, such as allopurinol, even if your uric acid levels are not too high.
    • A person with tophi or uric acid kidney stones will be treated for high uric acid levels no matter what the results of the uric acid test are.
    • Uric acid also may be measured in blood. To learn more, see the topic Uric Acid in Blood.

    WebMD Medical Reference from Healthwise

    Last Updated: September 09, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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