Final answer:
If adult AED pads are not available, pediatric pads can be used on an adult in an emergency. Adult pads can be used on a child if pediatric pads aren't available, but they should not be used on infants. CPR is recommended before using an AED.
Step-by-step explanation:
When it comes to the use of Automated External Defibrillators (AEDs), specific guidelines should be followed regarding the use of pediatric pads and adult pads. Pediatric pads are designed for children and deliver a lower electrical charge appropriate for their smaller body size. If pediatric pads are not available, adult pads may indeed be used on a child, placed on the chest and back to avoid overlap. However, adult-sized defibrillator paddles should ideally not be used on infants or small children due to their larger size and higher energy delivery.
If adult pads are unavailable for use on an adult, it is better to use pediatric pads than to do nothing at all because an untreated cardiac arrhythmia can be fatal. It should be noted that CPR (cardiopulmonary resuscitation) is recommended before using an AED, if you are trained in CPR and it is safe to perform.