Dispatcher-Directed Cardiopulmonary Resuscitation (CPR)—CPR instructions provided over the phone by a certified emergency medical dispatcher (EMD)--is one of the most important, time-critical, tasks the EMD performs. Immediate initiation of bystander CPR's paramount in the survival of out-of-hospital cardiac arrest (OHCA) patients. When handling such a case, EMD actions must be precise and efficient. This only happens when EMDs follow the scripted Medical Priority Dispatch System (MPDS) protocols in the ProQA™ software consistently and indiscriminately.

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