Board of Legal SpecializationPractice Exam

What should be emphasized when providing high-quality CPR?

1. Use of only chest compressions is preferred

2. Continuous chest compressions without pausing for ventilations

3. High volume of breaths to increase oxygen delivery

4. Full rescue breaths only at the beginning

The correct answer is: Continuous chest compressions without pausing for ventilations

When providing high-quality CPR, emphasizing continuous chest compressions without pausing for ventilations is crucial. This approach ensures that blood circulation is maintained effectively, as compressions are essential in providing the heart with the necessary flow of blood to vital organs. Research indicates that uninterrupted chest compressions significantly enhance the chances of survival in adults experiencing cardiac arrest. In the context of CPR, frequent interruptions for rescue breaths can diminish the effectiveness of the compressions. Continuous compressions not only maintain circulation but also help in creating a negative pressure within the chest cavity, which can assist in drawing air into the lungs when performed correctly. It is generally recommended for bystanders and non-professionals to perform hands-only CPR, focusing solely on high-quality compressions without the need for rescue breaths unless they are trained and able to provide effective ventilations. This method is especially important when considering the physiology of cardiac arrest situations, where the immediate focus is on restoring blood flow rather than on oxygenation, which, while important, is secondary to maintaining circulation in the initial phases of CPR. The emphasis is therefore rightly placed on achieving and maintaining high-quality compressions throughout the process.