096 Hemolytic Anemias Flashcards
Main sign of hemolysis (H20 C96 P709)
Jaundice
Telltale sign of intravascular hemolysis (H20 C96 P709)
Hemoglobinuria
LDH is increased by up to how many times normal in intravascular hemolysis? (H20 C96 P709)
10x
The increased number of reticulocytes is associated with increase in this RBC index
MCV
If bone marrow aspiration is done in hemolytic anemia, it will show: (H20 C96 P709)
Erythroid hyperplasia
The essential pathophysiologic process common to all hemolytic anemias (H20 C96 P710)
Increased red cell turnover
Gold standard for proving that the lifespan of red cells is reduced
Red cell survival study
Viral precipitant of aplastic crisis in hemolytic conditions (H20 C96 P710)
Parvovirus B19
Most abundant red cell membrane proteins [2] (H20 C96 P710)
glycophorins, band 3
Main red cell cytoskeletal protein (H20 C96 P711)
Spectrin
Mutations of this gene may account for majority of hereditary spherocytosis (H20 C96 P711)
ANK1
This finding on an ordinary blood count should raise the suspicion of hereditary spherocytosis because HS is almost the only condition in which this abnormality occurs (H20 C96 P712)
MCHC >34
In severe cases of hereditary spherocytosis, it is recommended that splenectomy is done at what age? (H20 C96 P712)
4-6 years
Hemolytic anemia characterized by mutation in SLC4A1 gene. This disorder is also protective against Plasmodium falciparum. (H20 C96 P713)
Southeast Asia ovalocytosis
Glycolytic enzymopathy that can cause severe mental retardation (H20 C96 P714)
Triose phosphate isomerase deficiency