when performing cpr on an adult, you should push the chest at least _____ inches deep.

When performing CPR on an adult, you should push the chest at least 2 inches deep, but no more than 2.4 inches. This depth ensures effective compressions while minimizing the risk of injury. Use your body weight to push straight down on the chest at a rate of 100 to 120 compressions per minute and allow the chest to fully recoil between compressions.