Anemia Flashcards
MCV
Mean corpuscular volume
MCHC
Mean corpuscular hemoglobin volume
microcytic
Small RBC cell volume-MCV
normocytic
Normal RBC cell volume-MCV
macrocytic
large RBC volume-MCV
Hypochromic
Low hemoglobin-MCHC
normochromic-
normal hemoglobin-MCHC
Anisocytosis
RBC size variation
Poikilocytosis
Shape variation
Anemia
Reduction in hemoglobin or RBC numbers.
What would you see in acute blood loss
Higher reticulocytes and nucleated RBC in circulation
Hemolytic Anemia signs
Increased bilirubin, increased LDH, reduced haptoglobin
Heptoglobin
Binds to free hemoglobin
Glucoronyl transferase
In liver that conjugates bilirubin with sugars to allow for excretion with stool.
Urobilinogen
Bilirubin that is converted to urobilinogen from intestinal bacteria and excreted as urine.
Extrahepatic obstruction jaundice
light/clay feces and dark urine. Bile duct obstruction.
intrahepatic obstruction jaundice
normal to light feces and light urine. Damaged hepatocytes.
Hemolytic anemia
Dark feces and urine.
Microangiopathic hemolytic anemia
Physical trauma to cells that forms schistocytes-extracopuscular
Autoimmune hemolytic anemia
Warm-IgG, spleen, spherocytes. Cold-IgM, complement, intravascular hemolysis, agglutination……..Both extracopuscular
sickle cell anemia
Clogs spleen and causes infarcted (dying) due to clogged vessels. -intracorpuscular
Thalassemia
Don’t enough alpha or beta chain. RBC are hypochromic, microcytic and increased RBC causes medullary expansion due to increased erythropoiesis.
Hereditary spherocytosis
Many spherocytes caused by spectrin defect. spectrin is infrastructure support for RBC. RBC form polymers and get intrapped in spleen causing splenomegaly. RBC are curvature.
Howell-jolly bodies
Evidence of markedly decreased splenic activity. RBC with organelle- intracorpuscular.