Hematology Notes

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Anonymous
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84867
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Hematology Notes
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2011-05-09 19:36:44
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test on thursday
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  1. What is blood?
    blood is a type of connective tissue that is made up of multiple parts, including red and white blood cells, cell fragments called platelets and plasma.
  2. What is hematocrit?
    the percentage of red blood cells in a sample of blood
  3. centrifuge blood cells
  4. what are erythrocytes
    red blood cells (RBCs)
  5. What is oxyhemoglobin?
    hemoglobin that carries oxygen and is bright red in color
  6. what is anemia
    A decreased ability to carry oxygen
  7. The function of an RBC is to transport oxygen throughout the body, a low count reflects a decreased abiliy to carry oxygen, this is a condition called
    anemia
  8. What happens when the RBC's age?
    Macrophages in the liver and spleen destroy them
  9. When a RBC is destroyed
    a pigment called biliverdin is released from the cell.
  10. Bilirubin is?
    A orange colored pigment made by the liver
  11. Bilirubin is made to?
    make bile, which is needed for the digestion of fats.
  12. What is Jaundice?
    When bilirubin does not make bile, instead it builds up in the bloodstream. The person's skin turns yellowish
  13. What is the average life span of a RBC?
    120 days
  14. What is erythropoitin?
    A hormone responsible for regulating the production of RBC's.
  15. Leukocytes are
    WBCs, white blood cells
  16. Granulocytes are
    White blood cells that have granules in their cytoplasm and include neutrophils, eosinophils and basophils.
  17. Argranulocytes are
    WBC's that do not have granules in their cytoplasm and include monocytes and lymphocytes
  18. They account for about 55% of all WBCs.....
    Neutrophils
  19. They account for about 3% of all WBC's and are effective in getting rid of viruses and parasitic infections such as worms
    Eosinophils
  20. They account for 8% of all WBC's. They are important for destroying bacteria, viruses, and toxins in the blood
    Monocytes
  21. They account for about 33% of all WBC's and provide immunity for the body
    Lymphocytes
  22. Platelets are?
    fragments of cells that are found in the bloodstream
  23. Thrombocytes are/
    platelets and are important in the clotting process
  24. Liquid portion of blood. it is mostly water but also contains a mixture of proteins, nutrients, gases, electrolytes, and wasted products.
    Plasma
  25. What is a normal Platelet count?
    between 130,000 and 360,000 platelets per cubic millimeter of blood
  26. What are the three major types of proteins found in plasma
    Albumins, globulins, fibinogen
  27. what is important in the blood clotting process?
    fibrinogen
  28. What is serum?
    The fluid that is left when all clotting factors are removed from plasma.
  29. What is blood coagulation?
    formation of a blood clot
  30. Steps in platelet plug formation..
    1. Break in vessel wall. 2. Blood escaping through break. 3. Platelets adhere to each other to end of broken vessel, and to exposed collagen. 4. Platelet plug helps control blood loss.
  31. When a blood clots for on the side of the blood vessel with no known injury is called
    Thrombus
  32. The moving portion of the Thrombus is
    embolus
  33. the clumping of RBC's following a blood transfusion is
    Agglutination
  34. they have antigen A on the surfaces of their RBC's. They also have abtibody B in their plasma. Antibody B will only bind to antigen B
    Type A blood
  35. The have antigen B on the surface of their RBC's. They also have antibody A on their plasma. They cannot recieve type A blood .
    type B blood
  36. They have both antigen A and Antigen B on the surface of their RBC's. they have neither antibody A nor antibody B in their plasma. They are universal recipients because most of them can receive all ABO blood types
    Type AB blood
  37. They have neither antigen A nor B on the surface of RBC's. however they do have both antibody A and B in their plasma. They are universal doners.
    Type O blood
  38. A protein first discovered on RBC's of the Rhesus monkey are
    Rh antigen
  39. people who have RBC's that contain the Rh antigen are
    Rh Positive
  40. people who have RBC's that do not contain The Rh antigen are
    rh negative
  41. What is anemia?
    A person does not have enough RBC's or hemoglobin in the blood to carry an adequate amount of oxygen to the bodys cells.
  42. What are the causes of Anemia?
    Iron deficiency, chronic blood loss, Vitamin deficiency, Inability to absorb vitamin b12, side effect of medication, chronic illness, bone marrow disorder, destruction of RBC's
  43. What is Aneurysm?
    a ballooned, weakened arterial wall.
  44. What are the causes of Aneurysm?
    Atherosclerosis.
  45. a condition in which abnormal hemoglobin causes RBC's to change to sickle (crescent) shape.they get stuck in capillaries.
    Sickle cell anemia
  46. what causes sickle cell anemia?
    hereditary
  47. a inherited form of anemia with a defective hemoglobin chain causing microcytic (small), hypochromic pale, and short lived RBC's is
    Thalassemia
  48. What causes Thalassemia??
    Heriditary

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