When performing chest percussion on a child, which of the following techniques should the nurse use? 1. Firmly but gently striking the chest wall to make a popping sound. 2. Gently striking the chest...

When performing chest percussion on a child, which of the following techniques should the nurse use?

1. Firmly but gently striking the chest wall to make a popping sound.

2. Gently striking the chest wall to make a slapping sound.

3. Percussing over an area from the umbilicus to the clavicle.

4. Placing a blanket between the nurse's hand and the child's chest.