3' x 5' - Blue nylon with EMS logo in center. The symbol of the Emergency Medical Technician is the staff of Asclepius, the Greek god of Healing. A single serpent encircles a staff within the vertical bar in the center of the blue Star of Life. It represents Medicine and Healing. Each of the bars represents the six functions of EMS: Detection, Reporting, Response, On-scene Care, Care in Transit, and Transfer to Definitive Care.