White Blood Cell Differential with Autohematology Analysis (Urinalysis)
This test examines white blood cells in your urine, which can help detect infections or inflammation in your urinary tract.
["Checking urine for white blood cells helps identify possible urinary infections or other health concerns."]
Key facts at a glance
- LOINC
- 46702-7
- Short code
- WBC #/area UrnS Auto
- Synonyms
- WBC #/area UrnS Auto
- 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
- Method
- automated-count
- 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 Might Be Ordered
Your healthcare provider may recommend this test if you have symptoms like frequent urination, pain or burning during urination, cloudy or strong-smelling urine, fever, or if you suspect a urinary tract infection (UTI). It can also be part of routine checks for certain conditions or after exposure to potential irritants.
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 urinary tract medications or douches 24 hours before testing if instructed.
What the Test Measures
The test looks for the presence of white blood cells (WBCs) in your urine. Elevated levels may indicate infection, inflammation, or other urinary issues. The autohematology analysis helps quantify these cells automatically for more precise results.
Common Causes of Abnormal Results
High white blood cell counts in urine can result from urinary tract infections (UTIs), kidney infections, interstitial cystitis, or other inflammatory conditions. Low levels may occur if your immune system is suppressed or if the test was improperly collected.
Reference range
Adult: 4.5-11.0 x 10^9/LN/A
No special preparation required. Stay well hydrated.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
WBC Urine Auto Analysis
Frequently asked questions
What does a positive result mean?
How long does it take to get results?
Can I take antibiotics before getting this test?
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