What is the proper technique for performing chest compressions during CPR on an adult?

The proper technique for performing chest compressions during CPR on an adult centers on placing the heel of one hand on the center of the chest, specifically at the lower half of the sternum, and interlocking the other hand on top. This positioning allows for effective force application to compress the chest adequately. Compressions should be delivered hard and fast, at a rate of about 100 to 120 compressions per minute. Effective compressions are crucial because they help circulate blood to vital organs, increasing the chances of survival during a cardiac emergency.

Using both hands ensures that enough force is applied to achieve the necessary depth of compression, which should be about 2 inches in adults. This depth is vital for generating adequate blood flow during cardiac arrest. The emphasis on compressing hard and fast stems from research showing that high-quality compressions significantly improve outcomes for the patient.

In contrast, the other choices involve techniques that would not effectively sustain circulation. For example, using one hand and compressing at a slow pace would not provide the adequate depth or rate necessary for effective CPR. Placing hands on the lower abdomen is incorrect as this location does not provide access to the chest cavity necessary for effective compressions. Performing compressions with minimal force would likewise fail to generate