Lead instructor for the Emergency Medical Technician (EMT) refresher class, Master Sgt. Mathew Gerdes, takes on the role of patient as two Airman practice loading an ambulance as part of their skills training, May 16, at the Scott Air Force Base main fire station. Medical technicians with the 932nd Medical Group are EMT certified and go through a refresher class every 2 years. (U.S. Air Force photo by Tech. Sgt. Christopher Parr)