Table 1.
Diagnostic algorithm for the classification of effusions using the Sysmex XT2000‐iV. *
| Δ TNC | TNCC, RBC, and HCT | DIFF Scattergram | BASO Scattergram | Classification |
|---|---|---|---|---|
| Very high | Variable | Leukocytic | Acellular, normal, or enlarged | Feline infectious peritonitis |
| Normal | Acellular | Acellular | Normal, acellular, enlarged, or lipid profile | Transudative |
| Cellular or hemorrhagic | Chylous | Normal, enlarged, or lipid profile | Chylous | |
| Normal or high | Cellular or hemorrhagic | Leukocytic | Enlarged or lipid profile | Reactive/inflammatory |
| Neoplastic (round cell) profile | Neoplastic (round cell) profile | Round cell neoplasia | ||
| Leukocytic or neoplastic (epithelial/mesothelial) profile | Neoplastic (epithelial/mesothelial) profile | Carcinoma/mesothelioma |
*
See text for the criteria used to define each category and for abbreviations. Categories were applied sequentially, beginning with Δ TNC and proceeding across to the right. TNC, total nucleated cells; TNCC, total nucleated cell count.