U.S. Air Force Tech. Sgt. Kristi Jordan, 97th Medical Support Squadron NCO in charge of laboratory service, draws blood from a patient at the laboratory, Jan. 13, 2015. There are a variety of samples collected at the laboratory to determine whether an individual is healthy or not, such as blood, urine or sweat sample tests. (U.S. Air Force photo by Senior Airman Franklin R. Ramos/Released)