Definitions for "Leukopenia"
Abnormally low numbers of circulating white blood cells.
Reduction in the number of circulating white blood cells.
any condition in which the number of leukocytes or white cells in the circulating blood is less than normal, the lower limit of which is generally regarded as 2000-4000 per cubic millimeter. When some medications such as alpha interfuron or hydroxyurea are given, the white cell count can be lower than these values. In elevating immune function against bacteria, the absolute neutrophil count is used to determine whether these medications should be temporarily discontinued[close window