KU activity: a method for calculating histopathologists' workloads.

An attempt to model activity of individual histopathologists or departments is illustrated, in which specimen numbers and types are weighted to produce an overall Kim unit (KU) activity. By cross referencing this numerical score against individual pathologists and clinicians, it is not only possible to interrogate departmental activity retrospectively, but also to predict and cost the impact of any change in service. The advantages over Welcans and Korner Units are illustrated.