NR 507 Week 2 Hematologic & Cardiovascular system

NR 507 Week 2 Hematologic & Cardiovascular
system


_____________ is the formation of red blood cells - ANSWER Erthropoiesis




_________ is the site of blood cell formation? - ANSWER Hematopoiesis




Hematopoiesis is stimulated by... - ANSWER infiltration of bone marrow and
faster proliferation/ differentiation of stem and daughter cells




how long does it take to build a RBC - ANSWER 7 days




adult hemoglobin = - ANSWER 2 alpha + 2 Beta chains

,when 02 binds to the iron in each heme molecule it is called - ANSWER
oxyhemoglobin




when CO2 binds to hemoglobin it is called - ANSWER deoxyhemoglobin




what are the primary dietary sources for iron? - ANSWER meat, dried meat,
eggs




what type of iron is effective in bonding with oxygen? - ANSWER Ferrous




primary diet sources for B12 - ANSWER meat, dairy. poultry, fish

, Purpose of B12 and folic acid - ANSWER Required for DNA, RNA, and myelin
synthesis




What is anemia? - ANSWER A reduction in the total # of circulating RBC and/ or
a decrease in HB function




what can cause anemia? - ANSWER -impaired RBC production
-Excessive blood loss
-increased RBC destruction




Anemia results in - ANSWER reduced RBC # and/ or Hb level>>> decreased
oxygenation
reduced RBC#>>>>decreased blood volume