What is the recommended depth of compressions for adults during CPR?

The recommended depth of compressions for adults during CPR is at least 2 inches (5 cm). This depth is critical because the aim of chest compressions is to create enough pressure to effectively compress the heart and allow for adequate blood flow to vital organs, including the brain. When compressions are performed at this depth, it ensures that sufficient blood is being expelled with each compression to maintain circulation during cardiac arrest.

Additionally, compressions should be done at a rate of 100 to 120 compressions per minute, and allowing for complete chest recoil between compressions is just as essential. This depth is supported by the guidelines established by organizations such as the American Heart Association, which aim to improve survival rates in cases of cardiac arrest. Limiting the depth to less than this recommended level could result in ineffective compressions, leading to insufficient blood flow and a lower chance of survival.