The uric acid blood test is used to detect high levels of this compound in the blood in order to help diagnose gout. The test is also used to monitor uric acid levels in people undergoing chemotherapy or radiation treatment for cancer. Rapid cell turnover from such treatment can result in an increased uric acid level.
The uric acid urine test is used to help diagnose the cause of recurrent kidney stones and to monitor people with gout for stone formation.
The uric acid blood test is ordered when a health care provider suspects that someone has a high uric acid level. Some people with high levels of uric acid have a disease called gout, which is a common form of arthritis. People with gout suffer from joint pain, most often in their toes, but in other joints as well. The test is also ordered to monitor cancer patients undergoing chemotherapy or radiation therapy, to ensure that uric acid levels do not get dangerously high.