Seton Medical Center Harker Heights Laboratory improves patient care by providing safe, on-site testing for any disease or condition. The latest technology allows us to make test results quickly available to all appropriate staff, in a strictly controlled secure manner. Our lab services are fully accredited and licensed by the U.S. Department of Health and Human Services and the Joint Commission. We provide clinical and pathology services 24 hours a day, seven days a week. Board-certified pathologists oversee all aspects of our laboratory operation.