Uric Acid, Urine, Mass Concentration
This test measures the amount of uric acid present in your urine over a 24-hour period. Uric acid is a waste product formed when your body breaks down substances called purines, which are found in certain foods and are produced naturally in the body.
["Urine uric acid helps assess kidney function and detect conditions like gout or kidney stones."]
Key facts at a glance
- LOINC
- 93454-7
- Short code
- W-18 Ur Cfm-mCnc
- Synonyms
- W-18 Ur Cfm-mCnc
- Category
- chemistry
- Sample
- urine
- Container
- Sterile urine container
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- confirm
- 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 Might Be Ordered
Your healthcare provider may recommend this test if you have symptoms like joint pain, frequent kidney stones, or if they suspect a metabolic condition. It can also be used to monitor kidney health, especially in people with diabetes or high blood pressure.
What to Expect Before the Test
No special preparation is needed for this test. You’ll collect all urine produced over a full 24-hour period in a container provided by your healthcare team. Drink plenty of fluids to help your kidneys produce urine throughout the day.
How the Test Works
After collecting your urine sample, it will be analyzed in a lab to measure the total amount of uric acid excreted in your urine. This helps determine how well your kidneys are filtering waste products from your blood.
What the Results Mean
Higher-than-normal levels may indicate kidney problems, gout, or other metabolic disorders. Lower-than-normal levels might suggest dehydration or certain genetic conditions. Your healthcare provider will interpret your results in the context of your overall health.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Elevated urine uric acid levels can signal kidney dysfunction, particularly in conditions like chronic kidney disease or nephrolithiasis (kidney stones). It may also be linked to gout, a form of inflammatory arthritis caused by uric acid crystals in the joints. Monitoring this test helps guide treatment for managing symptoms and preventing complications.
Short name
Urine Uric Acid
Frequently asked questions
What causes elevated urine uric acid levels?
Does diet affect urine uric acid test results?
How often should I get this test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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