CPR: Cardiopulmonary resuscitation is an emergency procedure that combines chest compressions often with artificial ventilation. AED: Automated external defibrillator is a portable device that restores the rhythm to the heart through electricity.
Stop the Bleed
"Massive bleeding from any cause, but particularly from an active shooter or explosive event where a response is delayed can result in death. Similar to how the general public learns and performs CPR, the public must learn proper bleeding control techniques, including how to use their hands, dressings, and tourniquets. Victims can quickly die from uncontrolled bleeding, within five to 10 minutes. However, anyone at the scene can act as an immediate responder and save lives if they know what to do." -bleedingcontrol.org