Eosinophil Cell Count (Area-Based Urine)
This test measures the number of eosinophils, a type of white blood cell, in your urine using microscopic analysis of urine sediment. Eosinophils are involved in allergic reactions and certain inflammatory conditions.
["Eosinophils in urine may indicate infections, allergies, or inflammatory processes—consult your doctor if symptoms persist."]
Key facts at a glance
- LOINC
- 46133-5
- Short code
- Epi Cells #/area UrnS LPF
- Synonyms
- Epi Cells #/area UrnS LPF
- 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-lpf
- 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 persistent urinary pain, blood in urine, or unexplained allergic reactions, especially if eosinophil levels in blood tests are elevated. It can help identify conditions such as interstitial cystitis, allergic urinary tract infections, or certain parasitic infections.
What to Expect Before the Test
No special preparation is needed. Collect a midstream urine sample in a clean container. Avoid using hygiene products that may alter results. If you’re pregnant or have kidney issues, discuss this with your provider before testing.
What the Results Mean
Elevated eosinophil counts in urine may suggest inflammation, infection, or allergic responses in the urinary tract. Normal results typically show few or no eosinophils. Your doctor will interpret results in the context of your symptoms and other tests.
Common Conditions Linked to This Test
High eosinophil counts in urine can be associated with conditions like allergic interstitial nephritis, eosinophilic cystitis, or parasitic infections of the urinary tract. Low or absent counts are usually normal but may still warrant further evaluation if symptoms exist.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Eosinophiluria (eosinophils in urine) is rarely a standalone diagnosis but can support a clinical suspicion of allergic or inflammatory urinary tract conditions. It may prompt additional testing (e.g., urine cultures, allergy evaluations) or treatment adjustments for conditions like chronic urinary symptoms or unexplained allergic reactions.
Short name
Urine Eosinophil Count
Frequently asked questions
How often should I get this test?
What does a positive result mean for my health?
Can I take any medications before 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