LANGLEY AIR FORCE BASE, Va. - 2nd Lt. Travis Schaffer, 633d Medical Operations Squadron clinical nurse, inserts an I.V. into a patient’s vein at the USAF Hospital Langley Urgent Care Center March 29. This is a task that is often performed by paramedics either at the scene of an incident, en route to the hospital or upon arrival. (U.S. Air Force photo/Airman Rebecca Montez)