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Serum/plasma mass concentration of uric acid (quantitative)

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of uric acid in your blood, a natural substance produced when your body breaks down certain foods and substances, including purines found in meat and fish. High levels may indicate conditions like gout or kidney issues.

Quick summary

["Uric acid levels help diagnose and monitor conditions affecting your metabolism or kidney function."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
37869-5
Short code
XR Skull Lat+Towne
Synonyms
XR Skull Lat+Towne
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
xr
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like joint pain, kidney problems, or if they suspect conditions like gout, kidney disease, or certain types of cancer. It may also be used to monitor treatments for conditions that affect uric acid levels.

What to Expect Before the Test

No special preparation is usually needed. You may be asked to fast for 8–12 hours before the test if it involves a blood draw, but this depends on your provider’s instructions. Drink plenty of water the day before if you’re having urine tests.

How the Test Is Performed

A healthcare professional will draw blood from a vein in your arm, or you may provide a urine sample depending on the test type. The sample is then sent to a lab for analysis.

What the Results Mean

Results are compared to a general reference range, but exact values can vary by lab. High levels may signal overproduction of uric acid or kidney problems, while very low levels might indicate certain metabolic disorders.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Elevated uric acid levels are often linked to gout, kidney stones, or kidney disease. Chronic high levels can also contribute to cardiovascular risks. Low levels may raise concerns about metabolic disorders or malabsorption issues, though this is less common. Always discuss results with your provider for personalized interpretation.

Short name

Uric Acid Level

Frequently asked questions

What causes uric acid levels to be too high?
High uric acid levels can result from diet (rich in purines), certain medications, kidney problems, or metabolic conditions. Genetics may also play a role in some cases.
How can I lower my uric acid levels naturally?
Lifestyle changes like reducing high-purine foods, staying hydrated, maintaining a healthy weight, and avoiding alcohol can help. Always consult your provider before making major dietary changes.
Do I need to fast for this test?
Fasting requirements vary. If your provider ordered a blood test, they may specify fasting for 8–12 hours. For urine tests, fasting is often not required, but check with your provider for exact instructions.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy