Imagine if you can a busy resuscitation room in a nameless Emergency Department.

The staff are working tirelessly in an, eventually fruitless, attempt to save the life of the patient in front of them.

The cardiac rhythm is Ventricular Fibrillation (VF), one of the two 'shockable' rhythms of cardiac arrest. The paddles of the defibrillator are seized by one of the two Doctors at the bedside, he places the paddles on the chest of the patient, he presses the button to charge the paddles, he 'shocks' the patient.