High-performance EMS systems typically use a fractile response time standard, in which:
A) a significant fraction of all responses must be achieved within an established time.
B) the ambulance must arrive at the scene within 8 minutes in 50% of all dispatches.
C) turnaround time for the entire call should be no more than 1 hour in 90% of all calls.
D) medics must be in the ambulance and en route within 2 minutes of being dispatched.
Answer: A) a significant fraction of all responses must be achieved within an established time.
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