Quest Diagnostics works to empower people to take action to improve health outcomes.  Derived from the world’s largest database of clinical lab results, Quest’s diagnostic insights reveal new avenues to identify and treat disease, inspire healthy behaviors and improve health care management.

Each year, Quest’s 45,000 employees serve one in three adult Americans and half the physicians and hospitals in the United States. The Quest Diagnostics Drug Testing Index will help everyone stay on top of trends in drug-testing. Click here to access the index on Quest Diagnostics’ website.