IMPC_HEM_039_001 10^3/ul false false FLOAT false simpleParameter false A white blood cell (WBC) count measures the number of white blood cells in your blood. A WBC differential determines the percentage of each type of white blood cell present in your blood. A differential can also detect immature white blood cells or any abnormalities, both of which are signs of a potential problem. Large Unstained Cell (LUC) count false false false 1.0 false true