Uric Acid In Blood: Test Overview
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Test Overview
The blood uric acid test measures the amount of uric acid in a blood sample. Uric acid is produced from the natural breakdown of your body's cells and from the foods you eat.
Most of the uric acid is filtered out by the kidneys and passes out of the body in urine. A small amount passes out of the body in stool. But if too much uric acid is being produced or if the kidneys are not able to remove it from the blood normally, the level of uric acid in the blood increases.
High levels of uric acid in the blood can cause solid crystals to form within joints. This causes a painful condition called gout. If gout remains untreated, these uric acid crystals can build up in the joints and nearby tissues, forming hard lumpy deposits called tophi. High levels of uric acid may also cause kidney stones or kidney failure.
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| Last updated: | October 31, 2007 |
|---|---|
| Author: | Maria G. Essig, MS, ELS |
| Reviewed By: | E. Gregory Thompson, MD - Internal Medicine, Stanford M. Shoor, MD - Rheumatology |
| Editors: | Susan Van Houten, RN, BSN, MBA, Tracy Landauer |
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