Uric Acid Blood Test
An Uric Acid Blood Test is used to help diagnose the cause of recurrent kidney stones and to monitor people with gout for stone formation.
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. Another cause of hyperuricemia is increased cell death, due to cancer or cancer treatments. This can lead to an accumulation of uric acid in the body.
It’s also possible to have too little uric acid in your blood, which is a symptom of liver or kidney disease. It’s also a symptom of Fanconi syndrome, a disorder of the kidney tubules that prevents the absorption of substances such as glucose and uric acid. These substance are then passed in the urine instead.
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