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Amorphuratecryurqlcompassist

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

This test checks for the presence of amorphous urate crystals in your urine, which can indicate issues with uric acid metabolism or kidney function.

Quick summary

{"Amorphous urate crystals are salt deposits that can form in urine when uric acid levels are high","These crystals may be associated with kidney stones, dehydration, or high purine diets","The test uses computer-assisted analysis to detect crystal presence in urine samples","Finding crystals does not always mean disease—diet and hydration can affect results","Your doctor will interpret results along with other tests and your symptoms"}

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

Key facts at a glance

LOINC
50239-3
Short code
Amorph Urate Cry Ur Ql Comp Assist
Synonyms
Amorph Urate Cry Ur Ql Comp Assist
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
Method
computer-assisted
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

What is this test?

The urate crystals test is a laboratory analysis that looks for amorphous (shapeless) urate crystals in your urine. Urate crystals form when uric acid, a waste product normally filtered by your kidneys, combines with minerals like sodium or potassium to create solid particles. This test uses computer-assisted microscopy to identify whether these crystals are present in your urine sample.

How is the test performed?

You will provide a urine sample, typically collected in a sterile container during a routine urine analysis. The sample is then examined under a microscope using specialized computer software that helps detect and identify crystals. The test looks for the presence or absence of amorphous urate crystals and may note the quantity if present.

Why might I need this test?

Your doctor may order this test if you have symptoms suggesting possible kidney stones, urinary tract problems, or disorders related to uric acid metabolism. It may also be part of a routine urinalysis or used to monitor conditions like gout, kidney disease, or metabolic disorders. The test helps healthcare providers understand how well your kidneys are filtering waste products.

How should I prepare?

For this test, you may need to avoid certain foods or supplements before providing your sample, as these can affect crystal formation. Your doctor may ask you to fast or avoid high-purine foods (such as organ meats, certain seafood, and alcohol) for a period before the test. Stay well-hydrated unless otherwise instructed, as dehydration can influence results. Always follow your healthcare provider's specific preparation instructions.

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 presence of urate crystals in urine is often normal and not harmful. However, persistent crystal formation may contribute to kidney stone development or indicate underlying metabolic issues. Your doctor will determine if further investigation or treatment is needed based on your overall health and other test results.
Can diet affect the test results?
Yes, diet significantly influences urate crystal formation. Foods high in purines (such as red meat, organ meats, certain seafood, and alcohol) can increase uric acid levels and lead to more crystals in urine. Dehydration also concentrates urine and promotes crystal formation. Your doctor may ask you to follow a specific diet before the test for accurate results.
What happens if urate crystals are found?
If urate crystals are detected, your doctor will evaluate the result in context with your other symptoms and test results. Treatment may involve dietary changes, increased fluid intake, medications to lower uric acid levels, or addressing underlying conditions. Not everyone with crystals requires treatment—your healthcare provider will determine the appropriate approach based on your individual situation.
Is this test related to gout?
While both involve uric acid, gout is typically diagnosed by detecting monosodium urate crystals in joint fluid, not urine. However, high uric acid levels that cause gout can also lead to urate crystal formation in urine. This test may be ordered alongside other tests when evaluating patients with gout or at risk for gout-related complications.
How often should this test be repeated?
The frequency of testing depends on your specific condition and your doctor's recommendations. For monitoring kidney stone formation or uric acid-related conditions, your doctor may order repeat testing periodically. For routine screening, testing may not be repeated unless new symptoms arise or your condition changes.
  1. 1
    Mayo Clinic - UrinalysisSource
  2. 2
    National Kidney Foundation - Urine CrystalsSource
  3. 3
    MedlinePlus - Uric AcidSource

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 17, 2026. · Read our editorial policy