Eosinophils %
Eosinophils as a percentage of total white blood cells. Eosinophils mediate allergic responses and defense against parasitic infections.
Why it matters: Eosinophil percentage above the reference range is a hallmark of allergic disease (asthma, atopy, food allergy), parasitic infection, and some drug reactions. The percentage often reflects the underlying process more faithfully than the absolute count when total WBC is shifted.
May increase with:
May decrease with:
What is Eosinophils %?
Eosinophils as a percentage of total white blood cells. Eosinophils mediate allergic responses and defense against parasitic infections.
What might a high or low Eosinophils % mean?
Eosinophil percentage above the reference range is a hallmark of allergic disease (asthma, atopy, food allergy), parasitic infection, and some drug reactions. The percentage often reflects the underlying process more faithfully than the absolute count when total WBC is shifted.
What is the typical reference range for Eosinophils %?
The general-population reference range shown here is 0.3 – 5.4 %. Reference ranges describe the general population and are not a personal target — discuss your results with your physician.
What can affect Eosinophils %?
It may be higher with: Allergies, Asthma, Parasitic infection, Drug hypersensitivity, Eosinophilic disorders. It may be lower with: Acute stress, Corticosteroid therapy, Acute bacterial infection.
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