AEDs are designed to be used by people who have no medical knowledge. They typically provide simplified controls with, visual and voice prompts to attach the de

AEDs are designed to be used by people who have no medical knowledge. They typically provide simplified controls with, visual and voice prompts to attach the device to the patient's chest. After that they work automatically. Due to their medical training, the doctor is likely to have done a better job at providing CPR than a random passing member of the public though.