Major Michael Hinton, a 919th Medical Squadron critical care nurse, administers a TB test for Master Sgt. Robert Winkler of the 556th RED HORSE Squadron during the latter unit’s recent field exercise at Eglin Air Force Base Field 5, Fla. The RHS exercise afforded the medics an opportunity to both train and offer real world treatment, including routine immunizations, to the Duke Field-supported and Hurlburt Field-based Reserve combat civil engineer unit. (U.S. Air Force photo/Staff Sgt. Jonathan McCallum)