As the first rescuer on the scene, you are performing cpr on an adult. when performing chest compressions, how deeply should you compress the chest?

The depth of the CPR should be at least 2 inches or 5 cm.

The recommended guidelines for CPR in an adult patient would be 100-120 compression per minute with 2-2.4 inches depth. Make sure that the chest has fully recoiled in each compression. Lower depth will decrease the efficiency while deeper depth will cause a higher risk of complication