What is the recommended rescue breath duration during CPR?

The recommended rescue breath duration during CPR is one second. This duration is crucial because it allows for a sufficient volume of air to be delivered into the person's lungs without causing excessive pressure. Properly timed breaths are essential for effective ventilation, ensuring that oxygen reaches the individual’s bloodstream while minimizing the risk of gastric inflation, which can lead to complications such as choking or vomiting.

When delivering rescue breaths, the focus should be on making sure that each breath is effective in providing oxygen. A one-second duration allows for a controlled breath that is not rushed, ensuring that the rescuer can observe the chest rising, a sign that the breath has been delivered correctly. The recommendations provided by organizations like the American Heart Association (AHA) reflect years of research and practical experience in emergency response practices, emphasizing the importance of effective rescue breathing during CPR to optimize outcomes for the victim.