When performing chest compressions on a newborn, how deep should the chest be compressed?

When performing chest compressions on a newborn, compressing the chest to one-third the anteroposterior depth is the recommended practice. This depth is crucial because it allows for effective circulation while minimizing the risk of injury to the fragile structures of a newborn's chest. Newborns have a very soft and compliant ribcage, which can easily be damaged if the compressions are too deep. The specified depth ensures that there is sufficient pressure to create adequate blood flow during compressions, which is essential for resuscitation efforts.

Effective chest compressions in this population are guided by the need to balance sufficient compressive force to maintain perfusion with the anatomical limitations that newborns present. This choice reflects the guidelines established by organizations like the American Heart Association, which emphasize different approaches for infants compared to older children or adults. Understanding the physiology and the unique characteristics of newborns is vital when applying resuscitation techniques.