Core Insights - Quest Diagnostics will present its strategy, performance, and market trends at the Jefferies Healthcare Services Conference on September 29, 2025 [1] - The presentation will include a live webcast available on the company's investor relations page, with an archived version accessible for 24 hours post-event [2] - Quest Diagnostics serves a significant portion of the U.S. population, providing diagnostic insights that empower health management [3] Company Overview - Quest Diagnostics is a leader in diagnostic information services, aiming to improve health outcomes through laboratory testing [3] - The company operates one of the largest databases of de-identified clinical lab results, which aids in disease identification and treatment [3] - Annually, Quest Diagnostics serves one in three adult Americans and half of the physicians and hospitals in the U.S. [3] Recent Developments - Quest Diagnostics has launched an advanced pharmacogenomic (PGx) laboratory offering, enhancing its service portfolio [4] - The 2025 Quest Diagnostics Drug Testing Index indicates a significant increase in fentanyl positivity in random tests compared to pre-employment screenings [5]