Final answer:
Before leaving for the hospital, it is necessary to notify the EMS coordinator of your destination to ensure proper preparation and resource allocation. Resetting the trip odometer and checking tires are not specified steps in this process.
Step-by-step explanation:
Before leaving the scene to go en route to the hospital, it is necessary to notify the EMS coordinator of your destination. This ensures that the hospital is prepared for the incoming patient and that resources are allocated properly. Moreover, tracking the ambulance's response time and distance covered can play a crucial role in analyzing response efficiency, although resetting the trip odometer isn't typically a required step prior to departure. Ensuring the ambulance is in good condition, including checking the tires, is part of routine maintenance rather than a specific action taken immediately before departure.