defibrillator at a public location. colorful image with a good reflection.

999 aed ambulance angina arrest arythmia atrial fibrillation automated cardiac cardiopulmonary chest compressions coronary cpr defibrillation defibrillator defibrillator box defibrillators device electrodes electronic electroshock emergency external health care heart heart attack massage rate hospital icu instruction life lifesaving equipment machine medical paddles paramedic patient public public pulse resuscitation shock sinus rhythm treatment unconscious urgency vital signs wall