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Uric Acid, Serum Concentration

Published: August 9, 2026Updated: August 17, 2026

This test measures the amount of uric acid in your blood serum. Uric acid is a waste product made when your body breaks down certain foods and substances, including purines found in meat and seafood.

Quick summary

["Your blood uric acid level helps assess risk for kidney stones or gout."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
49962-4
Short code
Urate Cl/1.73 sq M ?Tm Ur+SerPl-ArVRat
Synonyms
Urate Cl/1.73 sq M ?Tm Ur+SerPl-ArVRat
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
3.5
Ref high
7.2
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 you’re at higher risk for conditions like gout or kidney stones. It can also be used to monitor treatment for these conditions.

What to Expect Before the Test

No special preparation is usually needed, but you may be asked to fast for 8–12 hours before the test if it’s part of a metabolic panel. Bring any medications you’re currently taking, as some may affect results.

How the Test Works

A blood sample is drawn from a vein in your arm. The sample is sent to a lab where it’s analyzed to measure uric acid levels using a specialized chemical test.

What the Results Mean

Results are reported in milligrams per deciliter (mg/dL). High levels may suggest conditions like gout or kidney issues, while low levels might indicate certain metabolic disorders.

Reference range

NCBI: Uric Acid Male 3.5-7.2 mg/dL; Female 2.5-6.8 mg/dLN/A

Specimen: serum

No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

High uric acid levels can lead to gouty arthritis, kidney stones, or chronic kidney disease. Low levels may raise concerns about metabolic disorders or certain genetic conditions. Always discuss results with your healthcare provider for personalized interpretation.

Short name

Serum Uric Acid

Frequently asked questions

What causes high uric acid levels?
High uric acid can result from diet (rich in purines), kidney problems, certain medications, or metabolic disorders. Lifestyle factors like obesity or alcohol use may also play a role.
How can I lower my uric acid levels?
Dietary changes (reducing purine-rich foods), staying hydrated, maintaining a healthy weight, and avoiding excessive alcohol can help. Your provider may also recommend medications if needed.
Does fasting affect uric acid test results?
Yes, fasting for 8–12 hours before the test can sometimes lower uric acid levels, so it’s important to follow your provider’s instructions to avoid misleading results.
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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 17, 2026. · Read our editorial policy