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Serum or plasma concentration of uric acid (substance concentration)

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 compounds. High levels may indicate conditions like gout or kidney issues.

Quick summary

["Uric acid levels help diagnose and monitor potential health problems."]

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

Key facts at a glance

LOINC
17533-1
Short code
RA Nuc Ab Ser Ql IF
Synonyms
RA Nuc Ab Ser Ql IF
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
if
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 Is This Test Done?

Your healthcare provider may order this test to check for conditions such as gout, kidney disease, or other metabolic disorders. It can also help evaluate symptoms like joint pain, kidney problems, or after certain treatments.

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 involves a blood draw. Avoid strenuous activity or certain medications that could affect results.

What Happens During the Test?

A healthcare professional will draw blood from a vein in your arm. The sample is then sent to a lab for analysis. The test typically takes a few minutes, and you may feel slight discomfort but no lasting effects.

What Are Normal Results?

Results are not provided as a single numeric range here, as reference values vary by lab and individual factors. Your provider will interpret results in the context of your health.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Uric Acid

Frequently asked questions

How often should I get this test?
Your provider will determine how often you need this test based on your health status, symptoms, and any diagnosed conditions. Follow their guidance for scheduling.
What can affect my uric acid levels?
Diet (especially high-purine foods like red meat and shellfish), dehydration, certain medications (e.g., diuretics), and kidney function can influence uric acid levels. Lifestyle changes or medications may be recommended if levels are abnormal.
Can I eat or drink before the test?
If fasting is required, avoid food and liquids (except water) for the specified period. If no fasting is needed, you can eat and drink normally, but check with your provider for exact instructions.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

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