Select the correct placement of the AED electrodes

If the first shock is not successful, you should...

attempt a second shock immediately attempt a second shock in one minute discontinue shocking attempts as they are not likely to be successful resume CPR immediately

In which case may the AED advise a shock when it should not be given

Stable ventricular tachycardia Pulseless ventricular tachycardia Pulseless electrical activity Ventricular fibrillation