Skip to content

Urinalysis with Dipstick and Quantitative Measurement of White Blood Cell Count (Leukocyte Estimation)

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

This test checks your urine for signs of infection or inflammation by measuring white blood cells, which may indicate conditions like urinary tract infections or other systemic issues.

Quick summary

["A high white blood cell count in urine may signal an infection or inflammation needing medical attention."]

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

Key facts at a glance

LOINC
10000-8
Short code
R wave dur L-AVR
Synonyms
R wave dur L-AVR
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ekg
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

Why This Test Is Done

Doctors may order this test to diagnose urinary tract infections, kidney problems, or other conditions affecting your urinary system. It helps identify whether your body is responding to infection or inflammation in the urine.

What to Expect Before the Test

No special preparation is needed. You’ll provide a midstream urine sample in a clean container. If you’re using a catheter, your healthcare provider will collect the urine directly.

How the Test Works

Your urine is analyzed using a dipstick to visually estimate white blood cells and, if needed, further quantified through microscopic examination or automated instruments to confirm results.

Possible Results and Their Meaning

A positive dipstick result for leukocytes (white blood cells) suggests infection or inflammation. Further testing may be required to determine the exact cause, such as a urine culture or additional blood tests.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Urinalysis WBC Estimation

Frequently asked questions

What does a positive white blood cell result in urine mean?
A positive result means your urine may contain more white blood cells than usual, which can signal an infection (like a UTI), inflammation, or other underlying issues. Your doctor will discuss next steps, which may include additional tests or treatment recommendations.
Can I take antibiotics before my urine test?
Yes, if you’re already on antibiotics for a suspected infection, you can proceed with the test. However, if you’re unsure, inform your doctor—some tests may need to be delayed or adjusted based on your medication.
How long does it take to get results?
Results from a dipstick test are usually available immediately. Quantitative or microscopic results may take 1–2 business days, depending on lab processing times.
  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