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Uric Acid, Serum or Plasma Mass Concentration

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 foods and substances, including purines found in meat and seafood.

Quick summary

["Uric acid levels help assess kidney function and identify conditions like gout or kidney stones."]

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

Key facts at a glance

LOINC
31167-0
Short code
MPK Ur-mCnc
Synonyms
MPK Ur-mCnc
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 This Test Matters

Uric acid is a byproduct of normal metabolism, but high levels can lead to health issues. Your doctor may order this test to check for conditions like gout, kidney problems, or other metabolic disorders.

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 liver function panel. Bring any medications you’re currently taking.

How the Test Works

A blood sample is drawn from a vein in your arm. The lab then measures the uric acid concentration in your serum or plasma using a specialized method, often automated for accuracy.

What the Results Mean

Results help doctors compare your uric acid levels to a general reference range to determine if you’re at risk for complications like kidney stones or gout. Your doctor will interpret the results in the context of your overall health.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Uric Acid

Frequently asked questions

What does a high uric acid level indicate?
High uric acid levels may suggest conditions like gout, kidney disease, or metabolic syndrome. Repeatedly high levels can also contribute to kidney stones or damage to joints and tissues over time.
What does a low uric acid level indicate?
Low uric acid levels are less common but may occur in certain genetic disorders or conditions affecting purine metabolism. Your doctor would discuss this further if results are below normal.
How often should I get this test?
Your doctor will decide based on your medical history, symptoms, or other health concerns. Regular monitoring may be recommended if you have a history of gout, kidney issues, or other conditions linked to uric acid levels.
  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