Advanced Cardiovascular Life Support (ACLS) Practice Exam

What is a characteristic of effective CPR during a cardiac arrest?

1. It should focus only on chest compressions

2. It should involve alternating between compressions and breaths

3. It should include continuous monitoring of heart rhythm

4. It should maintain a rate of 100-120 compressions per minute

The correct answer is: It should maintain a rate of 100-120 compressions per minute

Effective CPR during a cardiac arrest must maintain a compression rate of 100-120 compressions per minute, which is crucial for optimal perfusion. This rate is recommended by numerous guidelines and is designed to enhance blood flow to vital organs, especially the brain and heart, during the critical moments of cardiac arrest. Compressions performed at this speed support adequate circulation and are found to be more effective in increasing the likelihood of survival and favorable neurological outcomes post-resuscitation. Maintaining this compression rate also contributes to a rhythm that is more manageable for anyone involved in resuscitation, whether they are healthcare providers or bystanders. It allows individuals to keep a consistent tempo that can be sustained over the critical duration of CPR, further improving efficiency. In contrast, focusing solely on chest compressions, alternating between compressions and breaths, or continuous monitoring of heart rhythm are all aspects that may not prioritize the critical need for proper compression rate. While these elements have their significance and need to be integrated into CPR practices, the emphasis on the correct compression rate is a fundamental component in increasing the efficacy of the resuscitation effort.