2-9

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Author:
CTEPBA
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299688
Filename:
2-9
Updated:
2015-04-01 15:28:06
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Hem Lab test 5
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2-9
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  1. Variation in size of erythrocytes?
    Anisocytosis
  2. Lymphocyte that occurs in response to viral infection and that is common in infectious mononucleosis; Reactive lymphocyte ?
    Atypical lymphocyte
  3. a determination of the relative numbers of each type of white blood cell when a specified number (usually 100) is counted; white blood cell differential count; leukocyte differential count
    Differential count
  4. having reduced color or hemoglobin content
    Hypochromic
  5. having a larger-than-normal cell size
    macrocytic
  6. having a smaller-than-normal cell size
    microcytic
  7. having normal color
    Normochromic
  8. having a normal cell size
    Normocytic
  9. the engulfing of a foreign particle or cell by another cell
    phagocytosis
  10. significant variation in the shape of red blood cells
    poikilocytosis
  11. see atypical lymphocyte
    reactive lymphocyte
  12. What is the purpose of a WBC differential count?
    • determine the percentage  of each type of WBC in peripheral blood smear 
    • make observations on RBC morphology 
    • estimate platelet number
  13. Describe the area of the smear in which the differential count should be performed.
    area near the feathered edge of the smear where RBC are barely touching each other.
  14. What three characteristics of WBCs are evaluated in cell identification?
    • Cell size
    • Nucleus: shape and structure
    • Cytoplasm: amount, color, inclusions
  15. what is the percentage of segmented neutrophils?
    • 1m/o: 15-35
    • 6 and 12 y.o.: 45-50
    • adult: 50-65
  16. what is the percentage of band neutrophils?
    • 1m.o: 7-13
    • 6 y.o and Adult: 0-7 
    • 12 y.o.: 6-8
  17. what is the percentage of Eosinophils?
    1m/o; 6y.o.; 12 y.o.; and adult: 1-3
  18. what is the percentage of Basophils?
    1m/o; 6y.o.; 12 y.o.; and adult: 0-1
  19. Monocyte percentage?
    • 1m/o: 5-8
    • 6y.o.: 4-8
    • 12 y.o: 3-8
    • adult: 3-9
  20. Lymphocyte percentage?
    • 1m/o:40-70
    • 6y.o.:40-45
    • 12 y.o.: 35-40
    • adult: 25-40
  21. What are the functions of neutrophils?
    • active in phagocytosis
    • increased during bacterial infections
  22. What are the functions of monocytes?
    primary defense against invading pathogenic organisms
  23. What are the functions of lymphocytes?
    • important in antibody production
    • communicating with other cells in immune system 
    • production of cytokines.
  24. conditions that affect WBC percentage?
    • Bacterial infection
    • Viral infection
    • infectious mononucleosis 
    • parasitic infection
    • allergic reactions
    • Leukemias
  25. Increased total WBCs, increased percentage of neutrophils andbands
    Bacterial infection
  26. Decreased WBCs, increased percentage of lymphocytes
    Viral infection
  27. Increased total WBCs,
    increased lymphocytes,
    increased atypical lymphocytes
    Infectious mononucleosis
  28. Increased eosinophils
    • parasitic infections
    • allergic reaction
  29. Total WBCs usually increased
    increase in type of leukocyte involved
    Leukemias
  30. RBC morphology during Iron deficiency anemia,thalassemias
    Microcytic
  31. RBC  morphology in case of Vitamin B12 deficiency, folate deficiency?
    Macrocytic
  32. RBC cell morphology in case of Hereditary spherocytosis
    Spherical
  33. RBC hemoglobin content in case of Iron deficiency anemia and Spherocytosis is
    Hypochromic

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