In early 1998, an inter Trust working group (chaired by Mrs M Waddell) was established by the Regional Medical Services Consortium (RMSC). In March 1999 it published its report in which it had developed a common unit of measurement for aseptic chemotherapy workload.
A unit of issue was defined as “any individually dispensed item.” A dose would consist of one or more units of issue. Each unit of issue would be assigned a pre-defined band. The numerical value of the band increased with the increased complexity of the unit of issue.