How many breaths should be given after chest compressions?

In the context of CPR for adults, the correct number of breaths to administer after a series of chest compressions is two. This technique is essential because the primary goal of CPR is to circulate oxygenated blood to vital organs, especially the brain, and to provide adequate ventilation.

When performing CPR, the recommended sequence is to first perform chest compressions, which help maintain blood flow. After completing a set of compressions, giving two breaths allows for the delivery of oxygen directly to the lungs. This is a critical step because it ensures that even after the heart has stopped, the victim's body still receives some oxygen, which can help delay the damaging effects of lack of oxygen to the brain and other organs.

Using two breaths after compressions is based on established guidelines for high-quality CPR, balancing the need for effective circulation with the necessity of ventilating the lungs. This method maximizes the chances of survival until professional help arrives.