What is there an Increased focus on with CPR? What was REMOVED? a) Increased focus on chest compressions, Removed mouth-to-mouth ventilation. b) Increased focus on automated external defibrillator (AED) use, Removed rescue breaths. c) Increased focus on checking for a pulse, Removed using a CPR barrier device. d) Increased focus on calling 911, Removed using an AED.