Sonora Quest Laboratories is an integrated laboratory system servicing over 7,000 clients throughout Arizona including hospitals, physicians, managed care organizations and employers. We have approximately 2,000 employees statewide and perform over 70,000 diagnostic tests per day.

Our comprehensive on-site test menu includes routine testing to more esoteric cytogenetic studies. 
    
At Sonora Quest Laboratories, our Ethical Behaviors, Mission, Vision, and Values are more than just words on paper. They are the guidance we use in everything we do.

Diagnostic Testing & Services

Sonora Quest Laboratories operates 24 hours a day, 7 days a week, 365 days a year, providing our customers with a comprehensive menu of routine and specialty laboratory tests and services. With the consolidated capabilities of our main testing laboratory, gene-based testing through our cytogenetic division - Palo Verde Laboratory, the hospital laboratories that are managed by our employees through Laboratory Sciences of Arizona, and the additional esoteric capabilities of Quest Diagnostics' Nichols Institute, we are able to offer unequaled convenience in utilizing one laboratory for all diagnostic and prognostic clinical testing needs. 

We also collaborate with Pathology Specialists of Arizona to support Sonora Quest Laboratories with medical direction and pathology services.