Accuracy of Instructional Diagrams for Automated External Defibrillator (AED) Pad Positioning

Manufacturer's diagrams showing defibrillation pad positioning (as used on public access defibrillators) are anatomically incorrect and are likely to lead to poor position of defibrillation pads, with reduced defibrillation efficacy.

We will ask untrained members of the public to observe the diagrams and place pads as indicated on the diagram. We will asses the accuracy of pad placement and repeat the study using an anatomically correct diagram to see if we can improve the accuracy of pad placement.