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Serum or plasma concentration of uric acid

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

This test measures the amount of uric acid, a natural substance produced when your body breaks down certain compounds called purines. High levels may indicate conditions like gout or kidney issues.

Quick summary

["Uric acid levels help diagnose or monitor potential health problems related to purine metabolism or kidney function."]

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

Key facts at a glance

LOINC
25822-8
Short code
S aureus Etx B IgE Qn
Synonyms
S aureus Etx B IgE Qn
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
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 Is This Test Done?

Your doctor may order this test to check for conditions like gout, kidney disease, or to evaluate how well your body is processing waste products. It can also help diagnose or monitor certain genetic disorders or metabolic conditions.

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 uric acid tests in urine or serum/plasma often don’t require fasting. Bring any medications you’re taking to your appointment.

What Happens During the Test?

For a blood test, a healthcare provider will draw blood from a vein in your arm. For a urine test, you’ll collect a sample in a container. The sample is then sent to a lab for analysis.

What Are Normal Results?

There are no specific reference ranges provided here, as they vary by lab and specimen type (e.g., serum vs. plasma). Your results will be compared to your doctor’s standards for your age, sex, and health status.

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 doctor will determine how often you need this test based on your symptoms, medical history, and treatment plan. Regular monitoring may be recommended if you have conditions like gout or kidney disease.
Can diet affect uric acid levels?
Yes, diet plays a role. High-purine foods (like red meat, shellfish, and alcohol) can increase uric acid levels. Limiting these and staying hydrated may help manage levels.
What if my results are out of range?
If your results are abnormal, your doctor will discuss possible causes and next steps, such as lifestyle changes, medications, or further testing. Never interpret results independently.
  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