EMS or emergency medical service encompasses a complex network of various professionals. It includes positions like dispatchers, EMTs, paramedics, and medical staff from urgent care nurses to surgeons. The primary goal in any of these careers is to ensure quick and efficient response to any kind of emergency. Your responsibilities may involve the transport or subsequent treatment of a patient. Duties vary with the specific role in EMS. In any of these careers, you may work on-call hours. You can find work with government agencies, hospitals, or private ambulance services.