What are the two types of 911 systems?

The correct choice identifies the two primary components of the 911 system, which are the Public Service Answering Point (PSAP) and the Emergency Medical Dispatch (EMD) system.

The Public Service Answering Point is the first point of contact for individuals dialing 911, where trained personnel answer emergency calls and gather essential information about the incident. This ensures that the appropriate emergency services, whether medical, fire, or police, are dispatched quickly and efficiently.

The Emergency Medical Dispatch system is a specialized extension of the PSAP that incorporates protocols for assessing medical emergencies over the phone. Dispatchers trained in EMD can provide pre-arrival instructions, such as first aid or CPR, guiding callers until help arrives. This component is vital for providing immediate assistance and can make a significant difference in the outcomes for patients in emergency situations.

In this context, understanding these two components highlights the structured approach to emergency response initiated by 911 systems, emphasizing the crucial coordination between call-taking and emergency medical support. This knowledge is foundational for anyone involved in emergency services.