Emergency Medical Responder Practice Exam

The proper technique for performing CPR on an adult involves a sequence of 30 chest compressions followed by 2 rescue breaths. This rhythm is based on guidelines established for high-quality CPR, which emphasize the importance of both the rate of compressions and the timing of breaths.

The 30 compressions serve to effectively circulate blood and maintain blood flow to vital organs, particularly the brain and heart, which is critical in a cardiac emergency. Following this with 2 rescue breaths provides oxygen to the lungs, which is necessary because a person in cardiac arrest is not breathing normally. This combination allows for the best chances of survival and recovery.

The specific count of 30 compressions to 2 breaths helps to keep the compressions ongoing, ensuring that the heart has continuous support in terms of blood circulation, while the breaths are administered quickly to maximize the efficiency of the lifesaving efforts. It’s a balance designed to maintain effective ventilation alongside blood circulation during a life-threatening situation.

Other ratios or techniques mentioned would not align with current CPR guidelines, which have validated the 30:2 ratio as the most effective method for adult patients.