FLOAT % true 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. false 1.2 false false false simpleParameter IMPC_HEM_033_001 false false false false Monocyte differential count