White Blood Cells

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Last updated 12:16 AM on 4/15/26
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13 Terms

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Percentages & Appearances of WBC Types

Never Let Monkeys Eat Bananas

  • Neutrophil: 55-70%

    • A: segmented neutrophils

    • B: band neutrophils

  • C: Lymphocyte: 20-40%

  • D: Monocyte: 2-8%

  • E: Eosinophil: 1-4%

  • F: Basophil: 0.5-1%

<p>Never Let Monkeys Eat Bananas</p><ul><li><p>Neutrophil: 55-70%</p><ul><li><p>A: segmented neutrophils</p></li><li><p>B: band neutrophils</p></li></ul></li><li><p>C: Lymphocyte: 20-40%</p></li><li><p>D: Monocyte: 2-8%</p></li><li><p>E: Eosinophil: 1-4%</p></li><li><p>F: Basophil: 0.5-1%</p></li></ul><p></p>
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WBC Functions

  • Neutrophils: first responders, phagocytosis of bacteria

  • Lymphocytes: immune response, B cells = antibodies, T cells = regulation, NK cells: eliminate infected cells

  • Monocytes: differentiate into macrophages, phagocytosis, antigen presentation

  • Eosinophils: kills parasites, allergic responses

  • Basophils: release histamine, inflammation response

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Leukocytosis

WBC count above normal

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Leukopenia

WBC count below normal

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Toxic Granulation

  • Dark staining of prominent granules in cytoplasm of neutrophils

  • Conditions: bacterial infections

<ul><li><p>Dark staining of prominent granules in cytoplasm of neutrophils</p></li><li><p>Conditions: bacterial infections</p></li></ul><p></p>
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Dohle Bodies

  • Light-blue stain in the cytoplasm of neutrophils

  • Condition: bacterial infections

<ul><li><p>Light-blue stain in the cytoplasm of neutrophils</p></li><li><p>Condition: bacterial infections</p></li></ul><p></p>
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Toxic Vacuolization

  • Visible vacuoles (clear holes/empty spaces) in the cytoplasm neutrophils

<ul><li><p>Visible vacuoles (clear holes/empty spaces) in the cytoplasm neutrophils </p></li></ul><p></p>
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Hyper Segmentation

  • ≥5 lobes of nuclei in neutrophils

  • Condition: megaloblastic anemia (B12 deficiency)

<ul><li><p>≥5 lobes of nuclei in neutrophils</p></li><li><p>Condition: megaloblastic anemia (B12 deficiency)</p></li></ul><p></p>
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Pelger-Huet Anomaly

  • 1to 2 lobed nuclei, failure of neutrophils to segment

<ul><li><p>1to 2 lobed nuclei, failure of neutrophils to segment</p></li></ul><p></p>
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Chediak-Higashi Anomaly

Large granules in cytoplasm of neutrophils

<p>Large granules in cytoplasm of neutrophils</p><p></p>
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May-Hegglin Anomaly

Blue include bodies visible in neutrophils

<p>Blue include bodies visible in neutrophils</p>
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Alder-Reilly Anomaly

Heavy, dark azurophilic granules

<p>Heavy, dark azurophilic granules</p>
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Smudge Cells

Damaged white blood cells

<p>Damaged white blood cells</p>