Someone suddenly needs emergency medical aid.
It's time to learn. The PADI Medic First Aid course combines first aid and CPR training which also meets the prerequisite for the Rescue diver course. Upon completion of the MFA and Rescue diver you'll be a Qualified First-responder. You will learn the same emergency techniques used by paramedics and doctors, but at a layman's level. These courses are also acceptable for health and First Aid at work.