What is the correct hand placement when performing chest compressions on an adult?

When performing chest compressions on an adult, the correct technique involves placing one hand on top of the other and interlacing the fingers. This hand placement allows for better force transfer to the chest, which is critical when delivering compressions that will effectively circulate blood during a cardiac arrest.

Interlocking the fingers helps to stabilize the hands, providing a firm base from which to apply consistent pressure. It allows the rescuer to use their body weight effectively, ensuring that the compressions are deep enough (at least 2 inches) and at the proper rate (100 to 120 compressions per minute) to create adequate blood flow to vital organs.

Other methods, such as using the hands on the upper chest without interlocking fingers or placing hands on the lower chest above the abdomen, do not provide the same level of effectiveness in compressing the heart. Using only the fingers to compress the chest is also insufficient since it may not deliver the necessary depth and power needed to facilitate circulation. Proper hand placement is thus essential for successful and effective chest compressions during CPR.