Welcome to Sonora Quest Laboratories

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About Sonora Quest Laboratories
Sonora Quest Laboratories, an Arizona-based joint venture between Banner Health and Quest Diagnostics, is part of the nation’s largest integrated laboratory system. We are the trusted leader in diagnostic and information services with a comprehensive test menu that encompasses routine, molecular, genetic/genomic, pathology testing services, and more. We are accredited by the College of American Pathologists, the gold standard in laboratory accreditation, ensuring the highest standard of care for laboratory operations.