We performed a prospective study in our teaching hospital to determine
the demand for a High Dependency Unit where none had existed before.
An admission criteria protocol was designed for medical and surgical p
atients and this was used in an intense surveillance of 22 acute wards
over 2 weeks. It was predicted that a high dependency unit of eight b
eds would operate to capacity 50% of the time. An analysis of this typ
e over a short period of time using similar admission criteria could b
e used to assist in the prediction of the necessary size of a High Dep
endency Unit facility in any hospital.