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22 Cards in this Set
- Front
- Back
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Erythrocytosis
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=polycythemia
high number of red cells |
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anisocytosis
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varying sizes of RBCs
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poikilocytosis
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varying shapes of RBCs
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reticulocyte
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immature erythrocyte
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erythrocytes
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anucleate, biconcave
survival time = 120 days membrane contains chloride-bicarbonate antiport - important in allowing RBCs to transport CO2 |
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Platelets
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=thrombocyte
derived from megakaryocyte promote blood clotting contains dense granules and alpha granules survival time = 8-10 days 1/3 stored in the spleen |
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Petechiae
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red/purple spot on the body
caused by broken capillary (hemorrhage) smallest type of purpuric skin eruption may be a sign of thrombocytopenia |
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thrombocytopenia
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low platelet count
results in petechiae (normal platelet count= 150,000-450,000 per microliter) |
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types of leukocytes
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granulocytes:
neutrophils eosinophils basophils Mononuclear Cells: lymphocytes monocytes |
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normal number of leukocytes
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4,000-10,000
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normal number of platelets
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150,000-450,000
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normal number of red blood cells
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4.7-5.5x 10^6
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prevents mast cell degradation
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cromolyn sodium
used to treat asthma |
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Eosinophils
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granules of uniform size
defend against helminthic and protozoan infections produce histaminase and arylsulfatase (limit reaction after degranulation) |
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cause eosinophilia
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Neoplastic
Asthma Allergic processes Collagen vascular diseases Parasites |
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differentiate into macrophages in tissues
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monocytes
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most common type of circulating lymphocyte
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T cells (80%)
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Langerhans cells
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(name for) dendritic cells on skin
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blood groups
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example: A has A antigen on cell and anti-B antibody in plasma
antibodies DO NOT cross placenta Rh+/- indicates presence of antigen no antibodies until exposed anti-RH CAN cross placenta |
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incompatible blood transfusions can cause
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immune response
hemolysis renal failure shock death |
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hemophilia A
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deficiency of factor 8
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hemophilia B
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deficiency of factor 9
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