Remember when Domino's had the 30-minute delivery guarantee, and then when they retracted it ostensibly because their drivers were getting into too many accidents? EMS agencies are often required to arrive at the scene of a request for service within 8 minutes, at least 90% of the time, as part of their contract with the communities that they serve. And not surprisingly, ambulances are most frequently involved in crashes while in emergency (red lights and sirens) mode, trying to make the 8 minute standard. The ambulance crash log at EMSN has virtually daily reports of collisions involving ambulances.
However, a new study concluded that response times of 8 minutes or less were not associated with increased survival in most instances:
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