What technique should be avoided when performing CPR on a child?

Using both palms for compressions on a child is typically not recommended because it can exert excessive force and pressure on a child's smaller chest, which may lead to injury. Instead, when performing CPR on a child, it is generally advised to use one hand (for children) or two fingers (for infants) to deliver compressions. This approach allows for appropriate depth and rate of compressions while minimizing the risk of trauma.

The technique of pumping hard and fast is critical in CPR to maintain adequate blood flow to vital organs. Similarly, providing separate breaths is essential for effective CPR, ensuring that there is a proper exchange of oxygen. Choosing to use one hand for chest compressions can be appropriate depending on the size of the child and the rescuer's strength, making it a potentially viable option in certain situations.