Exam 1: Patho (Anemias) Flashcards
Pernicious anemia
(Macrocytic-normochromic)
Lack of vitamin B leads to altered DNA synthesis
Folate deficiency
(Macrocytic-normochromic; Decreased RBC production)
Lack of folate leads to premature cell death
Iron deficiency
(Microcytic-hpochromic; Decreased RBC production)
Lack of iron leads to lack of hemoglobin
Thalassemia
(Microcytic-hypochromic; Inherited disorders)
Congenital - impaired synthesis of hemoglobin chain
Sickle cell anemia
(Inherited disorders; Normocytic-normochromic)
Congenital-abnormal hemoglobin molecule
Post hemorrhage
(Normocytic-Normochromic; Extrinsic RBC destruction or loss)
Blood loss leads to insufficient RBC
Anemia of chronic Disease
(Normocytic-Normochromic; Decreased RBC production)
Chronic infection, inflammation, malignancy leads to increased demand or suppression
hemolytic disease of the newborn
(Extrinsic RBC destruction or loss)
maternal antibodies cause destruction of fetal cells
Acute blood loss
(Extrinsic RBC destruction or loss)
blood loss leads to insufficient RBC
Aplastic anemia
(Normocytic-Normochromic; Decreased RBC Production)
Bone marrow suppression leads to decreased production (Toxic, radiant, immune injury)