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IDEXX VetAutoread™ Hematology Analyzer Parameters

Parameter	Description
Hematocrit (Hct)	Calculated as the percentage of packed red cell volume to the total blood sample volume. Reported as Hct %.
Hemoglobin (Hgb)	The calculation is derived from a measurement of the depth that the float descends into the packed red cells (a function of red cell density) and the hematocrit. The analyzer makes corrections for buffy coat volume. Reported as Hgb (g/dL).
MCHC	Mean corpuscular hemoglobin concentration (hemoglobin/hematocrit) x 100.
WBC	This parameter combines the total granulocyte and lymphocyte/monocyte measurements. Reported as WBC x 10⁹/L. The analyzer will also report "10⁶ x mL" and "10³ x µL."
Total Granulocyte Count (GRANS)	This buffy coat segment consists of granulocytes (neutrophils, eosinophils, basophils). The length of this band is converted into a total granulocyte count. Reported as GRANS x 10⁹/L.
Percentage Granulocytes	Granulocytes expressed as a percentage of the total white cell count and displayed as % GRANS.
Eosinophils (EOS) Neutrophils (NEUT)	Only available for canine and bovine samples; high levels of eosinophils (› ~ .5 x 10⁹/L) can be recognized and quantified by the analyzer. In these cases, the eosinophil count and neutrophil count (by subtraction) are printed after the % GRANS. (Any basophils present are included in the neutrophil count.)
Total Lymphocyte/Monocyte Count (L/M)	Stained lymphocytes and monocytes comprise one segment of the buffy coat. The length of this band is converted into a total lymphocyte/monocyte count. Reported as L/M x 10⁹/L.
Percentage Lymphs/Monos	Lymphocytes and monocytes can also be expressed as a % of the total white cell count. Displayed as % L/M.
Platelet Count (PLT)	Stained platelets comprise the lowest density layer of the buffy coat. The length of this band is converted into a numerical platelet count value. Reported as PLT x 10⁹/L.
% Reticulocytes	This parameter is only available for canine and feline samples; expressed as a percentage of the (RETICS) hematocrit, within the range of 0.2% ≤ x ≤4.0%.
Fibrinogen (Fib)	Total plasma fibrinogen is reported as mg/dL.

VetAutoread is a trademark of QBC Diagnostics, Inc.