U.S. Army Spc. Juan Hernandez, Jr., McDonald Army Medical Center U.S. Army Medical Activity medical laboratory technician, prepares to draw a blood sample from a patient at Joint Base Langley-Eustis, Va., June 26, 2017. Lab technicians at the U.S. Air Force Hospital Langley and McDonald Army Health Center play a vital role in the overall readiness and deployability of members across JBLE by ensuring accurate results are provided to medical professionals who can use the results to form medical treatment plans for patients. (U.S. Air Force photo/Staff Sgt. Teresa J. Cleveland)