How may hand placement during CPR differ for smaller children?

Using one hand instead of two is the appropriate method for performing CPR on smaller children, particularly those who are of a smaller stature or younger age. This technique allows for better control and improved effectiveness while minimizing the risk of injury to the child's ribcage, which can be more easily damaged due to their softer bones compared to adults.

In contrast to larger individuals, smaller children generally require less force during chest compressions, and using one hand allows the rescuer to maintain effective compressions without excessive pressure. This method also facilitates the rescuer's ability to provide rescue breaths if necessary while still ensuring adequate circulation and oxygenation of the child's vital organs.

The alternatives, such as using both hands regardless of size, could lead to unnecessary force and potential harm. Placing hands solely on the abdomen is not appropriate for CPR, as the compressions need to be directed at the chest to be effective. Hand placement on the shoulders would not provide the necessary compressions needed to circulate blood. Therefore, using one hand ensures both safety and efficacy in providing lifesaving care to smaller children during CPR.