Hematology analyzers are computerized, highly specialized and automated machines that count the number of different kinds of white and red blood cells in a blood sample. The results they provide are collectively known as complete blood counts (CBCs) or complete blood count with differentiation of cells (CBCs with diff). Most current hematology analyzers provide red blood cell (RBC) counts, hemoglobin in RBCs, hematocrit levels, platelet counts, corpuscular data and counts of five different types of white blood cells. Some newer machines also measure numbers of two specialized cell types — immature white cells and nucleated red blood cells — that are necessary to confirm specific diagnoses.
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