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Serum/plasma uric acid concentration (quantitative)

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

This test measures the amount of uric acid in your blood, a waste product from purines (chemicals found in foods and your body). High levels may indicate conditions like gout or kidney issues.

Quick summary

["Uric acid helps identify potential health risks tied to blood chemistry."]

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

Key facts at a glance

LOINC
73538-1
Short code
Allopurinol ind plt IgG SerPl Ql FC
Synonyms
Allopurinol ind plt IgG SerPl Ql FC
Category
hematology
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
flow-cytometry
CPT
82784
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 This Test Matters

Uric acid is a natural byproduct of your body breaking down certain foods and substances. When levels are too high, it can lead to health problems like gout, kidney stones, or even heart disease. Your doctor may order this test to check for these risks or monitor a condition you already have.

What to Expect Before the Test

You’ll likely have a simple blood draw from a vein in your arm. No special preparation is needed unless your doctor instructs otherwise. If you’re on a low-purine diet or have been advised to avoid certain foods, follow their guidance to get the most accurate results.

What the Results Mean

Results are compared to a general range for healthy adults, but your doctor will interpret them in the context of your overall health. Very high or very low levels may signal underlying issues that need attention.

Common Causes of High or Low Levels

High uric acid can result from diet (e.g., high-purine foods), kidney problems, or certain medications. Low levels are less common but may occur with certain medical conditions or medications. Your doctor will discuss these findings with you.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Uric Acid Level

Frequently asked questions

What does a high uric acid level mean?
High uric acid levels may indicate gout, kidney disease, or other metabolic issues. Your doctor may recommend lifestyle changes, medications, or further testing to manage symptoms or prevent complications.
Can diet affect this test?
Yes, eating foods high in purines (like organ meats, shellfish, or alcohol) can temporarily raise uric acid levels. Avoiding these foods for a few days before the test may help get a clearer picture of your baseline levels.
How often should I get this test?
Your doctor will determine how often you need this test based on your health status. Regular monitoring may be needed if you have a history of gout, kidney problems, 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