Disorders Of White Blood Cells Flashcards
Granulocytes
Neutrophils, Eosinophils, Basophils/Mast
Neutrophils
Primary pathogen-fighting
Eosinophils
Help control allergic responses; fight parasites
Basophils/Mast
Release heparin, histamine, and inflammatory mediators
Monocytes/macrophages
Antigen-presenting cells, phagocytes, create inflammatory mediators, healing.
Lymphocytes
B cell, T cells, Natural Killer cells
B cells
Plasma cells, memory cells
T cells
Control immune response; cell-mediated immunity
Natural killer cells
Kill antigenic cells
Leukocytosis
Increased WBCs
Leukopenia
Absolute decrease in wbc (all WBC)
Neutropenia
Agranulocytosis <200 cells/ul. Neutrophils in particular
Aplastic anemia
Decrease in all bone marrow cells
Etiology
Infection, chemo drugs, radiation, splenomegaly, antibiotics, antipsychotic agents, genetic
Treatment of WBC production disorders
Underlying problem
Hematopoietic drugs ( increase activity of bone marrow)
– Human granulocyte colony stimulating factor
Neoplasticism disorders of blood cells
Lymphomas, Leukemias, Plasma cell dycrasias.
Lymphomas
Hodgkin, Non-Hodgkin
Leukemias
Acute, Chronic
Plasma cell Dyscrasia’s
Multiple myeloma
Dyscrasia: abnormal condition of the blood
Lymphomas: Hodgkin
Reed stern berg cells (Malignant B cells) *50% have EBV in RS cells Arises in a single node Progressive invasion of lymphoid tissue Eventual invasion of all tissue Treatment: chemotherapy and radiation.
Lymphomas: Non-Hodgkin
Associated with Virus, immunosuppressive, EBV, H pylori.
*B, T, NK cell- proliferation of abnormal cells
*Arise in lymph tissue
*More common and aggressive
Treatment: Chemotherapy and radiation:
Good response to treatment- high growth rate.
Leukemia (In bone marrow)
Diffuse replacement of bone marrow with unregulated, proliferate, abnormal cells.
44,000 new cases, 27,000 deaths in 2011
Disruption of genes that control normal blood cell development
Genetic and environmental factors: chemotherapy or other cancers
Fatigue, weight loss, nose bleeds, pallor, bone pain, infections.
Acute Leukemia
Abnormal proliferation of immature blast cells
Chronic Leukemia
Abnormal proliferation of well defined cells