What is the recommended depth for chest compressions during CPR?

The recommended depth for chest compressions during CPR is at least 2 inches. This depth is crucial for effectively generating adequate blood flow to the heart and brain during cardiac arrest. Compressions that are too shallow may not create enough pressure within the thoracic cavity to circulate blood adequately.

The guideline of at least 2 inches is based on research that shows this depth is necessary to ensure effective compressions that help to maintain perfusion of vital organs. Compressions should be given at a rate of 100-120 per minute and with full recoil between compressions to allow the heart to fill with blood.

In contrast, options suggesting a depth of 1 inch or 3 inches do not align with the established recommendations. A depth of 1 inch would not provide sufficient cardiac compression, while a depth of 3 inches or more could potentially cause injury to the ribs or other internal organs, making it less practical and safe. Thus, a minimum compression depth of 2 inches strikes the right balance between effectiveness and safety.