The LUCAS 2 is a mechanical chest compression device that provides consistent, high-quality CPR according to AHA guidelines. It can be used by first responders, medical professionals, and in pre-hospital and in-hospital settings for patients in cardiac arrest. The LUCAS 2 compresses the chest at a rate of 102 times per minute and a depth of 2.1 inches, allowing for full chest recoil between compressions. While it increases perfusion and standardizes compressions, there can be delays in application and it may not fit all patient sizes.