CPR
Staff Sgt. Dithma Needham (left), CPR instructor and aerospace physiology technician with the 21st Aerospace Medicine Squadron observes Staff Sgt. Melanie Curtis, aerospace physiology technician with the 21 AMDS, and Airman 1st Class Nathaniel Pepin, aerospace physiology technician with the 21 AMDS, as they practice cardiopulmonary resuscitation on an infant-mannequin. (U.S. Air Force photo/Airman 1st Class Jessica Hines)