In collaboration with the Santa Monica Hospital Medical Center Emergency Department, three prototype computer-based information systems were designed, developed, and operated: (1) a patient index system to provide better access to records and to identify patients who repeatedly return to the department; (2) a system for producing management reports on department workload and performance, and on the amount and source of patient revenue; and (3) a paramedic run statistics system to furnish summary statistics about runs that use the emergency department as a base station. The needs for, and functions and implementation of, these three systems are described in detail, and the costs of producing the reports are estimated. Other information systems for emergency departments are reviewed.
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