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Cholesterol Crystals, Urine — Qualitative, Computer-Assisted

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

A urine microscopy test that reports whether cholesterol crystals are present in the sample.

Quick summary

["This test checks a urine sample for cholesterol crystals, which may be associated with certain kidney or urinary conditions."]

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

Key facts at a glance

LOINC
50223-7
Short code
Cholest Cry Ur Ql Comp Assist
Synonyms
Cholest Cry Ur Ql Comp Assist
Category
lipid
Sample
urine
Container
Sterile urine container
Units
N/A
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?

This qualitative urine test checks whether cholesterol crystals can be identified in a urine sample. The result is generally reported as present or not detected.

Why might I need this test?

Urine crystal examination may be included when evaluating urinary symptoms or kidney disease. Cholesterol crystals can occasionally be found in association with conditions that affect the kidneys, particularly when substantial protein is lost in the urine.

How is the test performed?

A urine specimen is examined in the laboratory, often using computer-assisted microscopy, to look for cholesterol crystals. Because the test is qualitative, it identifies their presence rather than measuring their exact amount.

How do I prepare for the test?

Follow the collection instructions provided by your healthcare professional. A clean-catch, midstream urine sample is usually requested, and the sample should be placed in the sterile container supplied by the laboratory.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Finding cholesterol crystals in urine may occur with several urinary or kidney conditions, including protein-losing disorders such as nephrotic syndrome. The result should be interpreted with symptoms, urine protein findings, kidney function tests, and other microscopy findings. Their absence does not by itself exclude a kidney disorder.

Short name

Urine Cholesterol Crystals, Qualitative

Frequently asked questions

Does a positive result mean I have high blood cholesterol?
No. This test identifies cholesterol crystals in urine; it does not measure the cholesterol level in the blood.
What does a qualitative result mean?
A qualitative result reports whether cholesterol crystals were detected, rather than providing a specific concentration or number of crystals.
Are cholesterol crystals always a sign of kidney disease?
No. They may be associated with certain kidney or urinary conditions, but the result must be considered with the rest of the urinalysis and your clinical history.
  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