Serum or plasma mass concentration of uric acid (via immunoassay or similar method)

Your doctor may order this uric acid test if you have symptoms of gout, such as sudden joint pain, redness, or swelling, or to help monitor kidney stones, kidney disease, or certain cancer treatments that can raise uric acid levels in the blood.

Your healthcare provider may recommend this test to check for conditions like gout, kidney problems, or high levels of uric acid in the blood. It can also be part of routine health evaluations or monitoring for certain medications or diseases.

Before the test, tell your doctor about all prescription medicines, vitamins, and supplements you take, since some drugs can affect the results. You may be asked to avoid food or drink for a few hours, although drinking water is usually allowed.

No special preparation is usually needed, but you may be asked to fast for 8–12 hours before the test if it involves a blood draw. Avoid strenuous activity or certain medications for a few days beforehand if instructed.

During the test, a health professional will clean the skin on your arm, wrap a band around your upper arm, and draw a small sample of blood from a vein using a thin needle. The blood draw usually takes only a few minutes and causes minor discomfort.

A healthcare professional will draw blood from a vein in your arm. The sample is then sent to a lab for analysis. The process takes about 15 minutes, and you may feel a brief pinch or slight discomfort.

Your results will show whether your uric acid level falls within the typical range. High levels may suggest gout, kidney problems, or other conditions, while low levels are less common. Your doctor will review your numbers together with your symptoms and history.

Results are compared to standard reference ranges, but exact values can vary by lab. High uric acid levels may indicate overproduction, poor kidney function, or other metabolic issues. Low levels are less commonly associated with clinical concerns.