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24 Cards in this Set
- Front
- Back
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Acanthocyte/Spur Cell
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Irregular, spiculated red cells with few unevenly distributed surface projections of various length and diameter
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Agglutination
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An antibody coats the erythrocyte causing bridging and clumping
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Anisocytosis
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A variation in the size of RBC, may be due to the presence of macrocytes, microcytes or both
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Basophilic Stippling
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Presence of small, dark-blue bodies within the erythrocyte; observed in cells containing residual RNA
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Crenation
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RBC changes from a disc shape to spheres with projections; Result of pH change due to slow drying of blood films
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Darocyte
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Tear-shaped RBC that disrupts the bone marrow architecture
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Discocyte
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Discoid-shaped RBC, seen normally in dogs
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Echinocyte/Burr Cells
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Spiculated cells with numerous short, evenly spaced, blunt to sharp surface projections with uniform size and shape
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Ghost Cells
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A dead cell where the outside remains visible but the nucleus and cytoplasmic structures are not stainable
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Heinz Bodies
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Round structures representing denatured hemoglobin caused by certain oxidant drugs/chemicals; up to 5% normal in cats
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Howell Jolly Bodies
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Basophilic nuclear remnants seen in young erythrocytes in response to anemia; removed by spleen
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Hypochromic
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Decreased staining intensity due to insufficient hemoglobin; usually seen with iron deficiency
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Keratocytes
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Spiculated red cells with two or more pointed projections
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Macrocyte
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RBC's that are larger than normal with an increased MCV; usually reticulocytes
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Microcytes
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RBC's with a smaller than normal diameter and decreased MCV; seen in iron deficiency
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Nucleated RBC
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Cells released into circulation early during anemia; normal in non-mammalian animals
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Poikilocyte
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Abnormally shaped RBC
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Polychromasia/Polychromatophilic
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RBC that exhibit a bluish tint when stained with Wright's stain; organelles remain in cytoplasm indicating young cells
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Rouleaux
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A grouping of erythrocytes in stacks; seen with increased fibrinogen or globulin
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Schistocyte/Shizocyte
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RBC fragments; usually from shearing of the red cell by intravascular trauma; DIC
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Spiculated Cells
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Erythrocytes with one or more surface projections
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Spherocyte
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Darkly staining red cells with reduced or no central pallor; not easily detected except in dogs; suggest IMHA
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Stomatocyte
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Erythrocyte with an oval-shaped central pallor
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Target Cell/Leptocyte/Codocyte
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Thin erythrocytes with increased membrane or decreased volume
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