What is the recommended depth of chest compressions for adults?

The recommended depth of chest compressions for adults is 2 inches. This depth is crucial because it allows for adequate chest recoil, which is essential for restoring blood flow during cardiopulmonary resuscitation (CPR). When compressions are performed at the appropriate depth, it effectively helps to create a pressure difference within the thoracic cavity, facilitating blood circulation to vital organs.

The guidelines emphasize that compressions should be delivered at a depth of 2 to 2.4 inches for adults, which ensures that enough force is applied without causing injury. Depths that are too shallow, such as 1 inch, do not provide sufficient blood flow during cardiac arrest. Conversely, excessive depths, like 3 or 4 inches, can lead to complications and potential injury to the chest wall and vital organs.

Therefore, the correct answer aligns with the established CPR guidelines to maximize the effectiveness of resuscitation efforts.