What signifies a successful bag-valve-mask ventilation?

A successful bag-valve-mask ventilation is indicated primarily by the presence of chest rise with each ventilation. This is a crucial sign that demonstrates effective air delivery into the lungs. When the bag is squeezed, and the mask is properly sealed on the patient's face, you should observe the chest expanding as air is forced into the lungs. This physical response indicates that ventilation is occurring, and the patient is receiving the necessary oxygenation.

Other factors may contribute to effective ventilation support, such as the ability to communicate or minimizing interruptions during compressions, but they do not directly signify that the air is reaching the lungs. A successful pulse check assesses circulation but does not directly indicate whether bag-valve-mask ventilation has been effective in delivering air. Therefore, the visible chest rise serves as the most straightforward and immediate indicator of successful ventilation.