LANGLEY AIR FORCE BASE, Va. -- Elvin DeLoach, 633d Medical Operations Squadron paramedic, performs simulated chest compressions on Tech. Sgt. Gary Friedman, 27th Fighter Squadron medical elements specialist, during Pre-Hospital Trauma Life Support training March 29. Paramedics undergo extensive training to ensure they are qualified to perform the duties assigned to them. (U.S. Air Force photo/Airman Rebecca Montez)