For a 7-month-old infant, where should pediatric AED pads be placed?

For a 7-month-old infant, placing pediatric AED pads in the middle of the chest and on the back between the shoulder blades is the correct approach. This positioning allows for effective defibrillation by ensuring that the electrical shock delivered by the AED travels across the heart, which is crucial for restoring a normal heart rhythm during a cardiac event.

In infants, the anatomical size and the location of the heart necessitate this placement to maximize the effectiveness of the defibrillation. The pads should encompass the heart, and placing one pad on the chest and the other on the back ensures that the shock has a direct route through the heart muscle, increasing the chances of a successful outcome.

Other placement options would not provide the same level of contact with the heart or might not facilitate the proper delivery of electrical shock, which could result in inadequate treatment of a life-threatening arrhythmia.