Normocytic Anemia Flashcards
2 types of hemolytic anemia
Intrinsic and extrinsic
Inherited disorders characterized by either defects in the RBC’s plasma membrane, defects in certain intracellular enzymes, or abnormal hemoglobin
Intrinsic hemolytic anemia
Hemolytic anemia affects RBC in what way
Their elasticity or ability to protect itself from mechanical and chemical stresses as it circulates through the spleen and transverses narrow tissue capillaries
Acquired disorders associated with some external injury to otherwise normal RBC.
Extrinsic hemolytic anemias
Clinical clues that suggest hemolysis
1) Sudden or rapid onset of anemia (fall in hemoglobin more than 1 g/dl/day) in a patient with no evidence of bleeding
2) Jaundice
3) splengomegaly 4) hx of anemia since childhood
5) family hx 6) autoimmune disease, leukemia, lymphoma 7) use of drugs associated w/ hemoysis
When spleen removes old RBC from circulation, heme portion is broken down into
Iron and bilirubin
Bone marrow failure is AKA
Aplastic Anemia
A reduction of RBC, WBC, and platelets in the bood
pancytopenia
Dignosis of aplastic anemia is confirmed with
Bone marrow biopsy demonstrating reduced numbers of RBC, WBC, and megakaryocytes on bone marrow biopsy
Cause of death in people with aplastic anemia
Infection or bleeding