Serum or plasma mass concentration of uric acid

Your doctor may order this test if you have joint pain, redness, or swelling that could be caused by gout, if you are being evaluated for kidney stones, or if you need monitoring while taking certain medicines such as diuretics or chemotherapy drugs. It may also be part of an overall check of how well your kidneys are working.

Your healthcare provider may order this test to check for conditions like gout, kidney disease, or to monitor treatment for conditions that affect how your body processes uric acid. It can also help assess risk factors for certain health issues.

You usually do not need much preparation for a uric acid blood test, but your doctor may ask you to avoid food and drinks for a few hours beforehand. Tell your care team about all medicines, vitamins, and supplements you take, because some drugs can affect your results, and you may be asked to avoid alcohol before the sample is collected.

No special preparation is usually needed. You may be asked to fast before the test if it’s part of a broader metabolic evaluation, but this is not always the case for uric acid alone. Bring any medications you’re currently taking to your appointment.

A health professional will clean a small area 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 whole process usually takes only a few minutes. Afterward, a cotton pad and bandage are placed on the site, and you can return to your normal activities right away.

A blood sample is drawn from a vein, typically in your arm, by a healthcare professional. The sample is then sent to a lab for analysis.

A result within the normal range suggests your body is clearing uric acid as expected. A high level may point to gout, kidney stones, or reduced kidney function, and it can also rise during certain cancer treatments. A low level is less common but may be seen with some liver or kidney conditions. Your doctor will review your results together with your symptoms and medical history before deciding what they mean for you.

Results are compared to standard reference ranges, though exact values can vary by lab. High levels may indicate conditions like gout, kidney problems, or certain genetic disorders, while low levels might suggest metabolic issues or overuse of medications that lower uric acid.