| Question |
Answer |
| Acanthocyte |
irregularly spiculated, spur cells, may occur in cats with hepatic lipidosis, occasionally in dogs with liver disease. |
| NRBC |
nucleated red blood cells, normal in avians and reptiles, early release of immature cells (anemia) in dogs or cats. |
| Schistocyte |
fragmented RBCs, intravascular trauma, DIC, or iron deficiency. |
| Stomatocyte |
central pallor is slit-like, may be artifactual, associated with anemias, liver disease. |
| Crenated RBC |
shriveled RBC, spiculated, may occur with too much EDTA, slow drying of blood film. |
| Rouleaux formation |
stacked coin appearance, normal in horses, may be artifactual if blood is held too long or refrigerated. |
| Heinz bodies |
rounded projections, stain pale with wright's stain, <5% is normal in cats, increased with lymphosarcoma, hyperthyroidism, and diabetes mellitus in cats. |
| Howell-jolly bodies |
stain as blue dots, related to splenic removal or disorder. |
| Echinocyte |
regularly spiculated, artifactual, associated with slow drying of blood films or too much EDTA, may be associated with renal disease and lymphosarcoma in dogs. |
| Basophilic stippling |
presence of small, dark blue dots, usually characteristic of lead poisoning in dogs |
| Agglutination |
clumping formation, occurs in immune-mediated disorders |
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