Advanced Cardiovascular Life Support (ACLS) Practice Exam

What is the appropriate interval for an interruption in chest compressions?

1. 20 seconds or less

2. 15 seconds or less

3. 10 seconds or less

4. 5 seconds or less

The correct answer is: 10 seconds or less

The appropriate interval for an interruption in chest compressions during cardiopulmonary resuscitation (CPR) is indeed 10 seconds or less. This guideline is in place to minimize the amount of time that blood flow is not being generated to vital organs, particularly the brain and heart, during a cardiac arrest situation. Interruptions in chest compressions can lead to a significant drop in coronary perfusion pressure and can be detrimental to the patient’s outcome. Research and resuscitation guidelines emphasize that maintaining continuous chest compressions is critical, and any interruptions should be kept to a minimum. Limitations on interruption times, such as 10 seconds or less, help ensure that the quality of CPR remains high and increases the chances of return of spontaneous circulation (ROSC). Longer interruptions can lead to higher likelihoods of negative outcomes, including brain injury or failure to achieve ROSC. Thus, adhering to this 10-second guideline is fundamental for effective cardiac arrest management.