ITU alarm confusion-a smart solution

Many authors have identified the problems associated with the design of alarm systems used in Intensive Therapy Units (ITUs). The main problems highlighted include the number of alarms, frequency of soundings, false alarm rates, perceived levels of importance and the recognition of the alarms. In light of the problems identified it is suggested that a more integrated approach than currently available is adopted for the solution. We offer the following suggestions for discussion. As highlighted the current alarm systems are simply activated by using preset thresholds. A system is needed whereby the data gained from the patient is continuously logged, stored and trended with decisions being made (under software control) as to whether any parameters are outside acceptable levels. There are two levels of reaction which the system could offer in this situation, these being: 1. the on board processor decides the appropriate alarm for the condition; 2. the on board processor generates the appropriate alarm plus suggests remedial action. The areas of investigation required within this system, namely, the hardware, the software and the user interface, are discussed