Clin Path Review 3 Flashcards
(34 cards)
Macrocytic anemia indicates what type of anemia and why?
Regenerative b/c immature RBCs are a little bigger than mature RBCs
Microcytic anemia indicates what type of anemia?
Iron deficiency
Microcytic anemia is often seen with what condition?
Chronic blood loss
What does polychromasia indicate?
Regenerative anemia d/t blood loss/destruction
Blueish color of young RBCs
Polychromasia
What does hypochromasia suggest?
Not enough Hb
Fragmented RBCs are called _____
Schistocytes
What causes echinocytes?
E-lyte imbalances, non-specific disease, rattlesnake venom
Seen in blood smear d/t changes in lipid concentrations in RBC membrane
Acanthocytes
What disease will produce acanthocytes?
Cats w/hepatic lipidosis, dogs w/hemangiosarcoma
What type of anemia produces keratocytes?
Iron deficiency anemia
What cell morphology looks like a manta ray mouth?
Keratocytes
What causes schistocyte formation (RBC fragmentation)?
Intravascular trauma (DIC, tumors), or iron deficiency anemia
What does the presence of a spherocyte suggest?
IMHA
Small RBC that lacks central pallor
Spherocyte
Shifting of Hb to one side of the cell
Eccentrocytes
What causes formation of eccentrocytes?
Oxidative damage (ie onions, garlic, etc)
What other blood abnormality is seen in conjunction with eccentrocytes?
Heinz bodies
What causes heinz body anemia?
Oxidative damage
What are extrinsic causes oxidative damage to RBCs in cats?
Acetaminophen, propylene glycol
What illnesses can cause heinz body production in cats?
Lymphoma, hyperT, diabetes
What drugs can cause heinz body anemia in dogs?
Cephalosporins
Ingestion of this metal can cause heinz body anemia in dogs and cats
Zinc
What plant causes heinz body anemia in horses?
Wilted red maple leaves