Staff Sgt. Cory Marquez, 28th Medical Operations Squadron emergency medical technician paramedic, administers an intravenous infusion into Senior Airman Brandon Stout, 28th Civil Engineer Squadron firefighter, at Ellsworth Air Force Base, S.D., Sept. 3, 2014. The infusion is used to treat dehydration in patients and consists of sodium chloride, which helps to increase water and electrolyte levels in the body. (U.S. Air Force photo by Senior Airman Anania Tekurio/Released)