The new role of the hospital emergency department.

The volume of medical services delivered within hospital emergency departments in the City of Saskatoon is increasing rapidly. These probably are not "new" medical services but rather represent a transfer of "old" services to the emergency departments from other sites where they were previously rendered. The visit to the emergency department is initiated more often by the patient than the doctor and once there the patient is treated in a relatively short period of time. The illnesses so managed do not have a diagnostic, therapeutic or prognostic uniformity but rather are characterized by their acute and totally unexpected onset. This acute and non-programmable nature of the illness makes it difficult to deliver the service in a physician's office where the appointment system prevails and efficiently deals with the great majority of his patients. Data to determine whether or not this is a desirable development have not yet been obtained but it is clear that in its present usage the emergency department must be thought of as a facility which not only provides exceptional diagnostic and therapeutic equipment but as one which also provides a treatment facility without prior appointment available at any hour of the day or night.