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Urine Microscopic Examination for Cellular Components (Tubular Cells)

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

This test examines your urine under a microscope to check for abnormal cells, crystals, or other substances that may indicate kidney issues or other health problems.

Quick summary

["A microscopic urine test helps identify potential kidney damage or urinary tract problems early."]

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

Key facts at a glance

LOINC
11276-3
Short code
Tubular Cells UrnS Ql Micro
Synonyms
Tubular 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

Your healthcare provider may order this test if you have symptoms like blood in urine, frequent urination, pain during urination, swelling in legs, or if they suspect kidney disease. It’s also used to monitor kidney function in people with diabetes, high blood pressure, or other chronic conditions.

What to Expect Before the Test

No special preparation is needed. You’ll likely provide a clean-catch urine sample in a sterile container. Avoid using any urinary tract medications or douches 24 hours before testing.

What Happens During the Test

The urine sample is sent to a lab where it’s examined under a microscope. Technicians look for abnormal cells (like tubular cells), red blood cells, white blood cells, bacteria, or crystals that may suggest infection, kidney damage, or other conditions.

Possible Results and Their Meaning

If abnormal cells (such as tubular cells) are found, it may indicate kidney damage, inflammation, or other issues. Normal results mean no obvious abnormalities were detected in the urine sample.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Urine Microscopy

Frequently asked questions

What does a positive finding for tubular cells mean?
Tubular cells in urine can indicate kidney damage or stress, often due to dehydration, toxins, or underlying kidney disease. Your doctor will discuss next steps, such as additional tests or treatments, based on your overall health and symptoms.
Can diet or hydration affect this test?
Yes, dehydration can increase the presence of tubular cells. Staying well-hydrated before the test may reduce false positives. Avoid excessive caffeine or alcohol, as they can also impact urine composition.
How often should this test be repeated?
Your doctor will determine how often to repeat this test based on your symptoms, medical history, and test results. Follow-up may be needed if initial findings are abnormal or if you have ongoing kidney-related concerns.
  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