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Serum or plasma concentration of uric acid (mass concentration)

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

This test measures the amount of uric acid in your blood, which is a waste product from your body’s natural breakdown of certain foods and substances.

Quick summary

["Uric acid levels help assess kidney function and risk of gout or other conditions."]

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

Key facts at a glance

LOINC
24018-4
Short code
N men sg B Ag Ur Ql
Synonyms
N men sg B Ag Ur Ql
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why Is This Test Done?

Your healthcare provider may order this test to check for kidney problems, diagnose gout, evaluate metabolic disorders, or monitor treatment for conditions like high uric acid levels.

What to Expect Before the Test

No special preparation is needed, but you may be asked to fast for 8–12 hours before the test if it involves drawing blood from a vein.

What the Test Involves

A healthcare professional will draw blood from a vein in your arm using a small needle. You may feel a brief pinch, but it usually doesn’t cause significant discomfort.

Possible Results and Next Steps

Results may be compared to your baseline or clinical needs. High levels could signal kidney issues, gout, or other metabolic concerns; low levels may warrant further evaluation.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

High uric acid levels can lead to kidney stones, gout attacks, or other joint/heart complications. Low levels may indicate dehydration or certain genetic conditions. Always discuss results with your provider.

Short name

Uric Acid

Frequently asked questions

What causes elevated uric acid levels?
Elevated uric acid can result from diet (high in purines), kidney problems, metabolic syndrome, or certain medications. Lifestyle factors like alcohol or obesity may also play a role.
How can I lower uric acid naturally?
Staying hydrated, maintaining a healthy weight, limiting alcohol and red meat, and avoiding high-fructose foods may help. Always consult your provider before making changes.
Is this test painful?
The blood draw itself is minor and typically doesn’t cause lasting discomfort, though some may feel slight soreness afterward.
  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