Leukopenia

on 27.2.09 with 0 comments



  • Neutropenia: decreased in absolute numbers of neutrophils (normal neutrophil count = 2,500-7,000/mm3; serious infections may occur if << 500/mm3)

  • Lymphopenia

    • Decrease in number of lymphocytes (normal = 1,000 – 4,000/mm3 in adults and up to 8,000/mm3 in kids [their immune systems are still developing])

    • Causes: bacterial sepsis, active TB, uremia, lymphomas (especially Hodgkin’s disease), autoimmune syndromes, immunologic deficiency syndromes, chemo agents and glucocorticoids, and malnutrition

    • Lymphopenia + neutrophilic leukocytosis + increased WBC = bacterial sepsis

Category: Medical Subject Notes , Pathology Notes

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