Urine Microscopic Examination (Microscopic Urinalysis)
This test examines your urine under a microscope to check for cells, bacteria, crystals, or other substances that may indicate infection, kidney issues, or other health problems.
["A microscopic urine test helps identify hidden problems in your urinary system."]
Key facts at a glance
- LOINC
- 43249-2
- Short code
- X Ray Cry UrnS Ql Micro
- Synonyms
- X Ray Cry UrnS Ql Micro
- Category
- chemistry
- Sample
- urine
- Container
- Sterile urine container
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- microscopy-light
- 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 Does the Test Check?
The test looks for various components in your urine, including red blood cells (which may signal bleeding or kidney problems), white blood cells (often linked to infections), bacteria (possible urinary tract infection), crystals (sometimes linked to kidney stones), casts (signs of kidney disease), and other particles that could indicate abnormal processes.
Common Findings and Their Possible Causes
Findings such as red blood cells, white blood cells, or bacteria may suggest urinary tract infections, kidney problems, or other systemic conditions. Crystals or casts can point to kidney stones or chronic kidney disease, respectively.
Why Might You Need This Test?
Your doctor may order this test if you have symptoms like frequent urination, pain during urination, blood in urine, or if you have risk factors for urinary tract issues, kidney disease, or other conditions affecting the urinary system.
How Is the Test Performed?
You’ll provide a urine sample, typically collected in a clean container. The sample is then examined under a microscope by a lab technician to identify cells, bacteria, or other substances.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test plays a critical role in diagnosing urinary tract infections, kidney disease, and other conditions affecting the urinary system. Early detection can lead to timely treatment and better health outcomes.
Short name
Urine Microscopy
Frequently asked questions
What Does a Positive Result Mean?
How Often Should I Get This Test?
Can I Prepare for 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