anemia of iron/heme metabolism and abnormal nuclear development Flashcards
iron deficiency anemia
what is the blood picture
what are the abnormal cells found
microcytic hypochromic
ovalocytes
anemia of chronic disease
what’s the blood picture
normocytic normochromic
sideroblastic anemia
lead poisoning
porphyria
- decreased hemoglobin result
- defects in synthesis of protoporphyrin due to abnormal protoporphyrin precursors
iron overload
free iron in ferrous state initiates the generation of superoxide and other free radical that damages the membrane lipids.
most common form of anemia
IDA
most common form of anemia in hospitalized patients
ACD
2nd most common form of anemia
ACD
idiopathic sideroblastic anemia
- aka refractory anemia with ringed sideroblasts and idiopathic acquire SDA
- associated with decreased ALA synthase
secondary sideroblastic anemia
follows after exposure to certain drugs and toxins
screening test for porphyria
watson-schwartz test
example of iron-chelating drugs
desferrioxamine - iron is excreted in the urine
diagnostic test for pernicious anemia
schilling’s test
failure to split vitamin b12 for food
hypochloridia