Chapter 49.pe - Chapter49 DrugsUsedtoTreatAnemias

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Chapter 49 Drugs Used to Treat Anemias
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Blood Components Plasma The liquid part of blood that contains proteins essential  for the immune response and blood clotting Formed elements of the blood  Leukocytes (WBCs): part of the immune system Erythrocytes (RBCs): carry oxygen to the tissues and  remove carbon dioxide  
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Erythropoiesis
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Factors Essential to Producing  Healthy RBCs Adequate amounts of iron To form hemoglobin rings to carry the oxygen Minute amounts of vitamin B 12  and folic acid To form a supporting structure that can survive being  battered through blood vessels for 120 days Essential amino acids and carbohydrates To complete the hemoglobin rings, cell membrane, and  basic structure
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Types of Anemia Megaloblastic anemia Insufficient folic acid or vitamin B 12  to create the  stromal structure needed in a healthy RBC  Iron deficiency anemia A negative iron balance occurs Pernicious anemia  The gastric mucosa cannot produce intrinsic factor,  and vitamin B 12  cannot be absorbed
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Sites of Action of Drugs Used to  Treat Anemias
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Erythropoiesis Controls the Rate of  Blood Cell Production
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Synthetic Erythropoietins
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This note was uploaded on 02/19/2011 for the course RNSG 1301 taught by Professor Loftin during the Spring '11 term at Lone Star College.

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Chapter 49.pe - Chapter49 DrugsUsedtoTreatAnemias

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