Eosinophil count (absolute)
This test measures the number of eosinophils, a type of white blood cell, in your blood. Eosinophils help fight infections caused by parasites and play a role in allergic reactions.
["Eosinophil count helps identify infections, allergies, or other conditions affecting white blood cells."]
Key facts at a glance
- LOINC
- 6575-5
- Short code
- E coli VTN1 NAb Titr Stl Nt
- Synonyms
- E coli VTN1 NAb Titr Stl Nt
- Category
- chemistry
- Sample
- stool
- Container
- Clean container
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- neut
- Specimen volume
- 5 g
- Stability
- Refrigerated: 24h, Frozen: 7d
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your doctor may order this test to check for conditions like allergic reactions, parasitic infections, certain cancers (e.g., leukemia), or autoimmune disorders. It can also help monitor treatment responses.
What to Expect Before the Test
No special preparation is needed. You’ll have a small needle inserted into your arm or hand to draw blood. It usually takes a few minutes, and you may feel a brief pinch.
What the Results Mean
Elevated eosinophil counts may suggest allergies, infections, or inflammatory conditions. Lower-than-normal levels might indicate immune system issues or certain blood disorders. Your doctor will interpret results in the context of your health history.
Common Conditions Linked to Eosinophil Counts
High eosinophil counts can be linked to asthma, eosinophilic esophagitis, parasitic infections, or certain cancers. Low counts may be associated with immune deficiencies or chronic illnesses like HIV.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: Eosinophils in Health and Disease
Short name
Eosinophil count
Frequently asked questions
How often will I need this test?
Can I eat or drink before this test?
What are the normal reference ranges for 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