What is the frequency of chest compressions recommended during CPR for an adult?

The recommended frequency of chest compressions during CPR for an adult is between 100 to 120 compressions per minute. This rate has been established based on research and guidelines to maximize the effectiveness of CPR. The primary goal of compressions is to maintain blood circulation to vital organs, particularly the brain and heart, until professional medical help arrives.

Performing compressions at this rate ensures that enough blood is circulated, which increases the chances of a successful resuscitation. The speed also needs to be consistent and rhythmic to maintain blood flow effectively; too slow of a rate would result in inadequate blood circulation.

The other options suggest rates that do not align with the current guidelines; for instance, an 80 per minute rate is too slow, and 150 per minute may lead to fatigue and ineffective compressions due to the inability to maintain depth and consistency. The importance of adhering to the 100 to 120 compressions per minute guideline emphasizes the need for efficient and productive CPR techniques in life-threatening situations.