Eosinophils

How to Cite This Chapter: Don-Wauchope A, Chetty VT, Ivica J, Kavsak P, Khan WI, Lafreniere M, Nouri K, Solnica B. Eosinophils. McMaster Textbook of Internal Medicine. Kraków: Medycyna Praktyczna. https://empendium.com/mcmtextbook/chapter/B31.1269.3.7.27.12. Accessed December 13, 2025.

Last Reviewed: May 9, 2022

Last Updated: May 9, 2022

Chapter Information

For a brief introduction and guide to abbreviations, see Laboratory Tests: General Remarks.

Analyte [material]

Eosinophils

Reference range, target level, or decision threshold

50-500/microL (0.05-0.5 Giga/L)

2%-4%

Interpretation of results

↑ See Chronic Eosinophilic Leukemia (and Other Causes of Hypereosinophilia)

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Eosinophils

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