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White Blood Cell Differential with Absolute Counts (Urinalysis)

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

This test examines white blood cells in your urine to check for signs of infection, inflammation, or other conditions affecting your urinary tract or kidneys.

Quick summary

["Urinalysis WBC differential helps identify infections or immune responses in your urine."]

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

Key facts at a glance

LOINC
105104-4
Short code
WBC #/area UrnS
Synonyms
WBC #/area UrnS
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Ref low
4.5
Ref high
11
Critical range
2 N/A – 30 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
85004
SNOMED
900000000000003002
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 frequent urination, pain while urinating, fever, or unexplained weight loss. It’s also used to monitor chronic conditions like kidney disease or urinary tract infections.

What to Expect Before the Test

No special preparation is needed. You’ll likely provide a midstream urine sample in a clean container. Avoid using urine preservatives or additives unless instructed.

What the Test Measures

The test looks at the types and counts of white blood cells (neutrophils, lymphocytes, eosinophils, basophils, and monocytes) in your urine. Elevated counts may indicate infection, inflammation, or other systemic issues.

Possible Findings and Their Meanings

High numbers of certain white blood cells can signal urinary tract infections (UTIs), kidney disease, or systemic illnesses like lupus or leukemia. Low or normal counts may mean no active infection, but further testing could be needed.

Reference range

Adult: 4.5-11.0 x 10^9/LN/A

Specimen: urine

No special preparation required. Stay well hydrated.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

WBC Differential Urine

Frequently asked questions

How long does it take to get results?
Results are typically available within 24 to 48 hours, depending on lab processing times. Your provider will discuss findings during your follow-up visit.
Can I drink water before this test?
Yes, you can drink plenty of fluids before the test to ensure a good urine sample, but avoid excessive hydration if your provider has specific instructions.
What if my urine is cloudy or has blood?
Cloudy or bloody urine may indicate infection, kidney stones, or trauma. Report these findings to your provider immediately, as they may need additional testing or treatment.
  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