What is the correct depth for compressions during CPR?

The correct depth for chest compressions during CPR is between 1.5 inches to 2 inches for adults, which is why the selected choice is appropriate. This depth is recommended to ensure effective compressions that can generate sufficient blood flow to the heart and brain, which is crucial during cardiac arrest.

Compressions need to be deep enough to create adequate pressure but also must be performed at a rate of 100 to 120 compressions per minute. Compressions within this range have been shown to improve the likelihood of survival and better outcomes for victims of sudden cardiac arrest.

Proper depth is vital because shallower compressions may not be effective in creating the needed blood circulation, while deeper compressions beyond the recommended range can lead to potential injury for the individual, particularly to the ribs or internal organs. Thus, adhering to the guideline of compressing between 1.5 and 2 inches aligns with standard CPR training and practices for optimizing patient survival during such critical situations.