Figure 4From: The Cardiocerebral Resuscitation protocol for treatment of out-of-hospital primary cardiac arrestThe Emergency Medical Services (EMS) protocol of Cardiocerebral Resuscitation. CCC is continuous chest compressions, O2 is oxygen, ACLS is advanced cardiac life-support, IV/IO is intravenous or interosseous, ROSC is return of spontaneous circulation.Back to article page