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Understanding Your Medical Test: What It Is, Why You Need It, and How It Is Performed

Published: August 9, 2026Updated: August 17, 2026

This test checks for the presence of amorphous urate crystals in your urine sediment, which can help diagnose conditions affecting uric acid metabolism.

Quick summary

{"Urate crystals are common in acidic urine and usually harmless","High levels may indicate gout, kidney issues, or metabolic disorders","The test is part of routine urinalysis","Results are reported as present or absent","Follow-up testing may be needed if abnormal"}

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
105097-0
Short code
Amorph Urate Cry UrnS Ql
Synonyms
Amorph Urate Cry UrnS Ql
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Ref low
3.5
Ref high
7.2
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

This test is a laboratory procedure that helps your healthcare provider evaluate specific substances or markers in your body. The results provide important information about how well certain organs and systems are working, and they can help detect, diagnose, or monitor a wide range of health conditions so that you and your provider can make informed decisions about your care.

The urate crystals test is part of a urinalysis examination. It looks for amorphous (shapeless) urate crystals in your urine sediment under a microscope. Urate crystals form when uric acid, a normal waste product from breaking down certain foods, crystallizes in the urine. This test determines whether these crystals are present in your urine sample.

Your provider may order this test as part of a routine checkup, to investigate symptoms you have been experiencing, or to monitor an ongoing condition or treatment. The results can help confirm or rule out a diagnosis, guide treatment choices, and track changes in your health over time, giving you a clearer picture of your overall well-being.

Your healthcare provider may order this test as part of a routine urine examination or if you have symptoms such as painful urination, flank pain, blood in urine, or frequent urinary tract infections. It helps evaluate kidney function and screen for conditions related to uric acid metabolism. The test may also be used to monitor patients with known gout or kidney stone history.

This test is most often performed using a small sample of blood drawn from a vein in your arm, although the exact method may vary depending on what is being measured. A trained professional will clean the site, collect the sample, and send it to a laboratory for analysis. The procedure usually takes only a few minutes, and you can typically return to your normal activities right away.

A urine sample is collected (usually first-morning urine is best) and sent to a laboratory. The sample is spun in a centrifuge to separate the sediment from the liquid. The sediment is then examined under a microscope to look for the presence and quantity of urate crystals. Results are typically reported as either 'present' or 'absent,' though some labs may provide a semi-quantitative estimate.

Reference range

NCBI: Uric Acid Male 3.5-7.2 mg/dL; Female 2.5-6.8 mg/dLN/A

Specimen: urine

No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

Are urate crystals dangerous?
Occasional urate crystals in urine are usually harmless and common, especially if your urine is acidic or concentrated. However, persistent or large amounts may indicate an underlying condition that needs treatment.
Do I need to fast before this test?
No special preparation is typically required. Your healthcare provider may ask you to collect a first-morning urine sample for the most accurate results, as it is more concentrated.
What happens if urate crystals are found in my urine?
Finding urate crystals alone does not necessarily mean you have a serious condition. Your doctor will consider this result along with other urine findings, your symptoms, and medical history to determine if any further testing or treatment is needed.
Can diet affect urate crystal levels?
Yes, diets high in purines (found in red meat, organ meats, seafood, and alcohol) can increase uric acid production and potentially lead to more crystal formation. Staying well-hydrated helps dilute urine and may reduce crystal formation.
How is gout related to this test?
Gout is caused by uric acid crystals depositing in joints. While this test examines urine (not joint fluid), finding excessive urate crystals in urine may support a diagnosis of gout or help monitor how well treatment is working.
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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 17, 2026. · Read our editorial policy