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For suspected cardiac arrest, the snapshot emphasizes rapid recognition and activation of emergency services and an AED, followed by high-quality chest compressions. Trained rescuers can add rescue breaths; those not trained can provide continuous hands-only compressions. AED prompts guide defibrillation, and CPR should resume promptly after the device’s decision. Pediatric and infant CPR use modified compression depth and techniques. The recovery position is for a responsive person who is breathing spontaneously, with the head positioned to help keep the airway open and allow drainage. It should be avoided when spinal, pelvic, or major limb trauma is suspected; maintain in-line stabilization instead. Continue reassessing and be prepared to restart CPR if the person deteriorates.