When administering CPR on an adult, what is the recommended depth of chest compressions?

The recommended depth of chest compressions for adult CPR is at least 2 inches (5 cm) but no more than 2.4 inches (6 cm). Compressions of this depth are crucial as they ensure adequate blood flow to vital organs, particularly the heart and brain, during cardiac arrest.

Depths less than 2 inches may not generate sufficient pressure to effectively circulate blood, which is essential for sustaining life until advanced medical help arrives. Conversely, compressions deeper than the recommended depth can increase the risk of complications, such as rib fractures or damage to internal organs, without providing additional benefits in terms of circulation.

Overall, adhering to the guideline of compressing to a depth of 2 inches enables rescuers to optimize perfusion while minimizing potential harm during CPR. This depth, combined with a rate of 100 to 120 compressions per minute, helps maintain effective blood circulation during such critical situations.