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Urine Microscopic Examination for Renal Epithelial Cells (with Squamous and Urothelial Cells)

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

This test examines your urine under a microscope to check for the presence of certain types of cells, including renal epithelial cells, squamous cells, and urothelial cells. It helps identify abnormalities in your urinary tract or kidneys.

Quick summary

["Microscopic urine analysis can reveal signs of infection, inflammation, or structural issues in your urinary system."]

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

Key facts at a glance

LOINC
12248-1
Short code
Renal Epi Cells UrnS Ql Micro
Synonyms
Renal Epi Cells 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

Why This Test Is Done

Doctors may order this test if you have symptoms like blood in urine, frequent urination, pain during urination, or unexplained weight loss. It’s also used to monitor kidney function, detect infections, or check for conditions like urinary tract stones or tumors.

What to Expect Before the Test

No special preparation is needed. You’ll likely collect a midstream urine sample in a clean container. If you’re using a catheter, your provider will guide you through the process.

What Happens During the Test

Your urine sample is sent to a lab, where it’s examined under a microscope. The lab looks for different cell types, including renal epithelial cells, which can indicate kidney or urinary tract health. Results are typically ready within a few hours to a day.

Possible Findings and Their Meanings

The presence of renal epithelial cells may suggest kidney damage or disease, such as glomerulonephritis or interstitial nephritis. Squamous cells are normal but can increase with contamination. Urothelial cells may indicate bladder or upper urinary tract issues.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Urine Microscopy (Cell Count)

Frequently asked questions

Will this test show kidney disease if I have it?
Not always. While renal epithelial cells in urine can indicate kidney issues, other tests like blood tests or imaging are often needed for a full diagnosis. Your doctor will interpret results in the context of your symptoms and medical history.
Can I drink water before this test?
Yes, but avoid excessive fluid intake just before collecting the sample. Drinking water helps dilute urine for better microscopic analysis, but too much may dilute results.
Does this test hurt?
No, the test itself is painless. You may feel mild discomfort if using a catheter, but it’s temporary. If you’re concerned, discuss it with your healthcare provider before the test.
  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