How long should it take to deliver one rescue breath during CPR?

Delivering one rescue breath during CPR should take about one second. This duration is crucial because it allows for the proper inflation of the lungs without causing excessive pressure. A breath that takes around one second helps ensure that the air has time to enter the lungs adequately, leading to effective ventilation.

This timing also contributes to the goal of maintaining a balance between delivering rescue breaths and compressions. The recommended ratio of breaths to compressions during CPR is typically 30 compressions followed by 2 rescue breaths. If breaths are delivered too quickly, it can lead to ineffective ventilation and potentially increase the risk of airway complications or gastric inflation, which can hinder the effectiveness of the individual’s resuscitation.

By adhering to the one-second guideline, rescuers can maximize the chances of circulating oxygenated blood to vital organs, particularly during the critical moments of cardiac arrest. This practice aligns with the protocols established by organizations like the American Heart Association and the National Safety Council, ensuring that lifesaving measures are performed effectively.