Urinalysis with Microscopic Examination of Sediment (Qualitative)
This test checks your urine under a microscope to look for cells, crystals, or other substances that may indicate infections, kidney issues, or other health problems.
["A microscopic urine exam helps identify hidden problems in your urinary system."]
Key facts at a glance
- LOINC
- 76583-4
- Short code
- Kl pneum phoE Swab Ql NAA+probe
- Synonyms
- Kl pneum phoE Swab Ql NAA+probe
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- probe-amp-tar
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What Does the Microscopic Urine Exam Look For?
The test examines urine sediment (the solid particles that settle at the bottom of urine) for signs of red blood cells, white blood cells, bacteria, casts (tiny kidney structures), crystals, or other abnormal substances. These can signal conditions like urinary tract infections, kidney disease, or bladder problems.
How Is This Test Performed?
A small sample of urine is collected and sent to the lab. A technician applies a drop to a microscope slide and examines it under high magnification to identify any abnormal cells or substances.
When Might You Need This Test?
Your doctor may recommend this test if you have symptoms like frequent urination, pain while urinating, blood in urine, cloudy or foul-smelling urine, or if you have a suspected urinary tract infection, kidney disease, or other urinary issues.
What Are Common Findings?
Common findings include the presence of white blood cells (indicating infection), red blood cells (suggesting bleeding or kidney issues), bacteria (sign of infection), or crystals (which may relate to kidney stones or metabolic conditions).
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: This test is crucial for diagnosing urinary tract infections, kidney diseases, and other conditions affecting the urinary system. Early detection can lead to prompt treatment and better health outcomes.
Short name
Microscopic Urine Exam
Frequently asked questions
Why do I need a microscopic urine exam if my urine looks clear?
How long does it take to get results from this test?
Can I drink extra water before this test to help with results?
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