Quest Diagnostics Incorporated provides diagnostic testing, information, and services in the United States and internationally. It offers commercial clinical testing services, including routine clinical testing, such as tests for blood chemistries, complete blood cell counts, urinalyses, alcohol and other substance-abuse, and allergy, as well as routine microbiology testing, and pregnancy and other prenatal tests; anatomic pathology services for diagnosis of cancer and other diseases and medical conditions; gene-based and esoteric testing to establish a prognosis and to choose or monitor a therapeutic regimen; and testing services to employers for the detection of employee use of drugs-of-abuse. The company also provides risk assessment services for the life insurance industry; and develops and integrates clinical connectivity and data management solutions for healthcare organizations, physicians, and clinicians through its Care360 suite of products; and offers the ChartMaxx electronic document management system for hospitals. In addition, it offers provides central laboratory testing services in connection with clinical research trials on new drugs, vaccines, and certain medical devices. Further, the company develops and manufactures products that enable healthcare professionals to make healthcare diagnoses, including HerpeSelect ELISA tests that detect patient antibodies to certain types of herpes simplex virus, and sells to academic medical centers, hospitals, and commercial laboratories; point-of-care blood testing products; and InSure fecal immunochemical test for screening for colorectal cancer. Quest Diagnostics Incorporated offers its diagnostic testing services to patients, physicians, hospitals, employers, governmental institutions, and other commercial clinical laboratories through a network of laboratories and patient service centers. Quest Diagnostics Incorporated was founded in 1967 and is headquartered in Madison, New Jersey.