This course introduces the Lucas device, a portable system for automated chest compressions during cardiac arrest. Participants learn its key features, including compact size, backpack design, and simple charging. Training covers deployment and setup: positioning the back plate, securing the main unit, and locking clips. Learners use the “ABC123” method—Activation, Back plate, Clips—plus three steps for plunger height and choosing continuous or 30:2 modes. Practical use is emphasized with instruction on securing patients, pausing safely, and adapting for size. A key advantage—maintaining compressions while moving patients—is also highlighted. Finally, participants review maintenance practices such as decontamination and puck replacement, ensuring the device stays ready for critical care. This course gives responders confidence to quickly and effectively integrate the Lucas device into emergencies.