Where should the heel of one hand be placed for chest compressions?

The correct placement for the heel of one hand during chest compressions is at the center of the chest, specifically on the lower half of the breastbone (sternum). This positioning is essential for providing effective compressions that can generate adequate blood flow during cardiopulmonary resuscitation (CPR).

Placing your hands in the center of the chest ensures that the compressions can directly impact the heart, which is located just behind the sternum. This location allows for optimal force application needed to compress the heart sufficiently to circulate blood to vital organs, especially the brain and lungs. The lower half of the breastbone is chosen to avoid the risk of injury to the xiphoid process, the small bony projection at the bottom of the sternum, which could occur if compressions were applied too high or inappropriately.

Effective chest compressions are critical in any CPR scenario and require proper technique, including correct hand placement, to maximize the chances of survival until more advanced medical help arrives.