About ARUP Laboratories ARUP Laboratories is a national clinical and anatomic pathology reference laboratory and an enterprise of the University of Utah and its Department of Pathology. With more than 3, 000 employees, ARUP offers in excess of 3, 000 tests and test combinations, ranging from routine screening tests to highly esoteric molecular and genetic assays. Rather than competing with its clients for physician office business, ARUP chooses instead to support clients existing test menus by offering highly complex and unique lab tests, with accompanying consultative support, to enhance their abilities to provide laboratory services. ARUP offers a comprehensive suite of services that enables clients to have a positive impact on their local health community. ARUPs Utilization Management Suite of Services includes: ARUP ATOP a laboratory analytics service designed to identify potential over-, under-, and mis-utilization of individual laboratory tests.