Skip to content

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, which helps assess kidney function and detect conditions like gout or kidney stones.

Quick summary

["Uric acid levels can signal kidney issues or metabolic disorders."]

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

Key facts at a glance

LOINC
33398-9
Short code
N men sg A+C+W135+Y Ag Ur Ql LA
Synonyms
N men sg A+C+W135+Y Ag Ur Ql LA
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
la
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 doctor may order this test to check how well your kidneys are removing uric acid from your blood. It can also help diagnose conditions like gout, kidney disease, or high levels of uric acid in the blood (hyperuricemia).

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’s part of a metabolic panel. Bring any medications you’re currently taking to your appointment.

What Happens During the Test?

A healthcare provider will draw blood from a vein in your arm. The sample is sent to a lab for analysis. The test typically takes a few minutes, and you may feel a slight pinch or discomfort during the draw.

What Are Normal Results?

There are no specific reference ranges provided here, as they can vary by lab. Your results will be compared to your doctor’s expectations based on your health and medical history.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

High uric acid levels may indicate kidney problems, gout, or metabolic disorders like diabetes or obesity. Low levels are less common but could signal certain genetic conditions or liver/kidney dysfunction. Follow-up may include additional tests or lifestyle adjustments if needed.

Short name

Uric Acid

Frequently asked questions

How long does it take to get my uric acid test results?
Results are usually available within 1–3 business days, depending on your lab. Your doctor will contact you once they’re ready to discuss them.
Can I eat or drink before this test?
If fasting is required (common for metabolic panels), avoid food and liquids—except water—for 8–12 hours before drawing blood. If fasting isn’t needed, eat normally.
Will I need to take any special steps after the test?
You may experience mild bruising or soreness at the injection site, which usually goes away in a few days. Apply ice if needed. Avoid heavy lifting or strenuous activity for 24 hours.
  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