How many compressions should be performed in a each CPR cycle before giving breaths?

The correct answer is that 30 compressions should be performed in each CPR cycle before giving breaths. This guideline is part of the standard CPR protocol for adults, which emphasizes the importance of high-quality chest compressions to maintain blood circulation during cardiac arrest.

During CPR, the goal is to provide adequate blood flow to the heart and brain by compressing the chest at a depth of about two inches at a rate of 100 to 120 compressions per minute. After completing the 30 compressions, the rescuer should then give 2 rescue breaths. This sequence of compressions followed by breaths (30:2 ratio) is designed to maximize the effectiveness of CPR by ensuring that the heart receives enough rhythmic compressions to maintain circulation while also providing oxygen to the lungs through breaths.

This structured approach ensures that the rescue efforts are efficient and focused on the most critical aspect of CPR, which is sustaining the vital organs until emergency medical assistance can take over.