About

Sonora Quest Laboratories, a joint venture between Banner Health and Quest Diagnostics (NYSE: DGX), is part of the nation's largest integrated laboratory system with approximately 3,000 employees serving more than 23,000 patients every day throughout Arizona. Sonora Quest Laboratories is the market share leader in clinical laboratory testing in Arizona, performing more than 57 million diagnostic tests per year. Sonora Quest Laboratories offers a local comprehensive test menu which encompasses routine, molecular, prescription drug monitoring, cytogenetic, and pathology testing services. Ninety-eight percent of all testing is performed at our primary testing facilities located in Tempe, Tucson, Flagstaff, Prescott and Yuma. Sonora Quest Laboratories is accredited by the College of American Pathologists (CAP) which is the gold standard in laboratory accreditation, helping laboratories to maintain accuracy of test results and ensure accurate patient diagnosis. This accreditation ensures the highest standard of care for all laboratory patients as CAP inspectors examine laboratory staff qualifications, equipment, facilities, safety program and records, and overall management.