1. A computer implemented method for a dispatcher to respond to a caller regarding a medical emergency of a patient, comprising: providing an emergency medical dispatch protocol including a plurality of interrogatories for a dispatcher to ask a caller to generate an emergency medical dispatch response; initiating an intervention tool on a dispatch center computer to assist in aiding a patient; the intervention tool providing a user interface including a start input to start a timer; the intervention tool running the timer in response to the start input and simultaneously with the administration of a predetermined number of compressions to the patient's chest; the intervention tool providing a finished input on the user interface to terminate the timer in response to completion of the predetermined number of compressions; the intervention tool recording a final time recorded by the timer; and the intervention tool determining a recommendation based on the predetermined number of compressions and in relation to the final time.