What does the term "rescue breath duration" refer to during adult CPR?

The term "rescue breath duration" during adult CPR refers to the length of time each rescue breath is delivered. In the context of CPR, a rescue breath should be given in a way that allows the chest to rise visibly, which indicates effective ventilation. The correct duration for delivering each rescue breath is approximately 1 second. This timing ensures that the breath is sufficient to provide oxygen without causing overinflation of the lungs.

Since the proper administration of rescue breaths is critical, activities that extend this duration, such as taking longer than necessary to deliver the breath or providing excessively rapid breaths, can lead to complications. These may include ineffective ventilation and risk of asphyxia if the breaths are not delivered correctly.