Serum or plasma concentration of uric acid (substance concentration measurement)

Why Is This Test Done?

Your healthcare provider may order this test to check for high uric acid levels, which can cause gout or kidney problems. It might also be used to monitor conditions like kidney disease, certain cancers, or after treatments that affect how your body processes uric acid.

What to Expect Before the Test

You’ll typically have a small needle inserted into your arm to draw blood. If you’re tested for uric acid in urine, you may need to collect a sample over 24 hours. Avoid foods high in purines (like organ meats) for a few days before testing if instructed.

What the Test Results Mean

Results are compared to a general reference range, but exact values can vary by lab. High levels may signal gout, kidney disease, or other metabolic issues, while low levels might indicate certain genetic disorders or liver/kidney problems.

Common Conditions Linked to Uric Acid Levels

Elevated uric acid is often linked to gout (a painful joint condition), kidney stones, or kidney dysfunction. It can also be associated with high blood pressure, diabetes, or obesity. Low levels may rarely suggest genetic disorders like Lesch-Nyhan syndrome.