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Modification of an external low-pressure ventilator alarm to allow its remote use for isolated patients.

The problem of patients in isolation becoming disconnected from their ventilator systems is a serious one, as the closed doors of an isolation room usually prevent hospital personnel outside the room from hearing or seeing standard ventilator alarms To overcome this potentially life-threatening problem, we modified a standard external low-pressure alarm to accept a simple, inexpensively built remote warning system. In use on 23 patients in our intensive care unit over a 7-month period, this system proved to be a reliable and cost-effective means of warning hospital personnel of possibly life-threatening ventilator disconnects on isolated patients.