Percussion is a tapping technique that loosens secretions and causes drainage of mucus from the lungs while your child is in different positions. The procedure involves gentle rhythmic pounding on the chest with cupped hands, manual percussor, or percussion machine.
Your child's doctor will prescribe this procedure if it is needed. Otherwise, it can be used if your child has a cold or increased secretions.
Hand Positioning for Percussion
Bend from the wrist to tap your child's chest so the pounding does not hurt. A loud, hollow sound should be produced by the trapped air between the cupped hand and the chest. A slapping sound indicates that your hand is not cupped enough. Percuss only over the rib cage. Avoid the abdomen. If performed properly, percussion is painless.