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Uric Acid in Urine

What Affects the Test

Failing to collect exactly 24 hours of urine during a uric acid urine test can cause inaccurate test results.

High values

High uric acid levels may be caused by:

Low values

Low uric acid levels may be caused by:

  • Gout, when uric acid production is normal but uric acid removal by the kidneys is reduced.
  • Kidney damage or disease that prevents the kidneys from filtering uric acid out of the blood into the urine.
  • 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.

WebMD Medical Reference from Healthwise

Last Updated: June 12, 2012
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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