Midterms Flashcards
Anemia characterized by increased destruction of RBCs and decreased erythropoiesis
Hemolytic anemia
Causes of intrinsic hemolytic anemia
Hemoglobinopathies
Membranopathies
Enzymopathies
Examples of hemoglobinopathies associated with intrinsic HA
Sickle cell anemia
Thalassemia
Condition in bone marrow due to high production of RBCs
Erythroid hyperplasia
Proteins involved in hereditary spherocytosis
Band 3
Ankyrin
Spectrin
Proteins involved in hereditary elliptocytosis
Protein 4.1
Spectrin
Protein for anion transport
Band 3
Connects band 3 and ankyrin
Protein 4.1
Protein of primary cytoskeleton
Spectrin
Proteins for flexibility of cell membrane
Actin
Tropomyosin
Protein 4.1
Cause of intravascular HA
Synthetic heart valve
Enzymopathies in HA result to
Splenomegaly
Heinz bodies
Bite cells
G6PD is part of what pathway
HMP (hexose monophosphate pathway)
Products of G6P + NADP rxn
NADPH + phosphogluconate
Utilizes NADPH for removal of stress oxidant (ROS)
Glutathione reductase
Normal relationship of NADPH and ROS
High NADPH, low ROS
Abnormal relationship of NADPH and ROS
Low NADPH, high ROS
Heinz bodies are stained by
Supravital stain
High ROS = ? Hb denaturation
Increased
Enzyme for ATP production
Pyruvate kinase
Poikilocyte resulting from the sequestration of spleen
Bite cell
Substance that inhibits pyrimidine-5-nucleotidase
Lead/Pb
RBC inclusion related to pyrimidine-5-nucleotidase
Basophilic stippling
Condition of extrinsic hemolytic anemia involved in prehepatic jaundice
IMHA
Transcribe IMHA
Immune mediated hemolytic anemia
Test ideal for autoimmune HA
Coomb’s test or direct agglutination test
Small clots cause bursting of RBCs within a vessel (name the condition)
Microangiopathic hemolytic anemia (MAHA)
Causes of MAHA
DIC, TTP
Poikilocyte found in MAHA
Schistocyte
Individuals with this condition is rsistant to malaria
Duffy null (no Duffy Ag)
Duffy Ag is the receptor to what species
P. knowlesi, P. vivax
Fetal Rh incompatibility causes what disease
HDN
Treatment to sensitize the mother’s RBCs
RhoGAM
Hereditary spherocytosis is most common in what race
Northern Europeans
Spherocytes have _ surface/volume ratio
Low
T/F: Spherocytes cannot stretch
T (true)
Most impt. test/parameter for spherocytosis
EOFT
RBCs in hypertonic solution
Shrink/crenate
RBCs in hypotonic solution
Swell/burst
Coomb’s test result for spherocytosis
Negative
MCV for spherocytosis
Normal or decreased
The only condition with hyperchromia (high MCHC)
Hereditary spherocytosis
Brain tissues bacome yellowish
Kernicterous
Concentration of bilirubin to cause kernicterous condition
20mg/dL
Findings in UTZ(ultrasound) test in spherocytosis
Cholelithiasis (gall stones)
Gallstones are formed from ____ + _____
Ca + B1
Test useful to detect Band 3
Eosin-5-maleimide
Differrential test for hereditary spherocytosis and elliptocytosis
Eosin-5-maleimide
Condition in which the sinusoids of the spleen may be blocked
Hereditary elliptocytosis
Heat sensitive variant of hereditary elliptocytosis
Hereditary pyropoikilocytosis
MCHC in her. elliptocytosis
Normal
Hereditary ovalocytosis is also known as
Southeast Asian Ovalocytosis