During CPR for adults, how should the person's body be positioned?

The correct positioning of a person during CPR entails that they should be on their back on a firm surface. This position allows for optimal chest compressions, which are essential for circulating blood during cardiac arrest. When the person is on their back, you can effectively deliver compressions in the center of the chest, using proper technique to generate sufficient depth and force to promote blood flow to vital organs.

Using a firm surface is crucial because it provides the necessary stability and resistance against which chest compressions can be delivered. Compressions need to be timed effectively, and an unstable surface could hinder the ability to perform them correctly or create additional risks for both the rescuer and the person receiving care. It also helps ensure that the airway is aligned properly, making it easier to give rescue breaths if needed.

Other positions, such as on their side, seated, or facing down, do not support the effectiveness of the compressions and can impede airflow, making it more challenging to maintain proper airway management during resuscitation efforts. Therefore, laying the person flat on their back is the best practice in this situation.