2.3 Review Standards
Arrival time was the time of transition from the emergency medical services (EMS) stretcher to hospital gurney. Study data included all pauses in compressions, including pauses for procedures, pulse checks, compression device malfunction, or other causes. The case was considered completed 5 minutes after ROSC was achieved.  Time of death was the time that death was announced. Time of ROSC was the time a palpable pulse was announced by either the code leader or provider who palpated the pulse. Pulse checks identifying ROSC or termination of resuscitative efforts were not included in analysis. Primary quality metrics were pulse check times and chest compression fractions. Secondary metrics included time to IV access, and time to patient connection to the monitor.