Quest Diagnostics Newsroom https://newsroom.questdiagnostics.com/ Quest diagnostics offers a comprehensive menu of routine and specialty laboratory tests and services. With the consolidated capabilities of our regional laboratories, expanding international presence and the additional esoteric capabilities of Nichols Institute, we are able to offer unequaled convenience in utilizing one laboratory for all diagnostic and prognostic clinical testing needs. Quest Diagnostics Declares Quarterly Cash Dividend https://newsroom.questdiagnostics.com/2026-08-12-Quest-Diagnostics-Declares-Quarterly-Cash-Dividend Wed, 12 Aug 2026 16:15:00 -0400 https://newsroom.questdiagnostics.com/2026-08-12-Quest-Diagnostics-Declares-Quarterly-Cash-Dividend Bacterial Vaginosis Linked to Increased STI Co-Infection, Finds National Study of 1.5 Million Women from Quest Diagnostics https://newsroom.questdiagnostics.com/2026-07-30-Bacterial-Vaginosis-Linked-to-Increased-STI-Co-Infection,-Finds-National-Study-of-1-5-Million-Women-from-Quest-Diagnostics Thu, 30 Jul 2026 07:30:00 -0400 https://newsroom.questdiagnostics.com/2026-07-30-Bacterial-Vaginosis-Linked-to-Increased-STI-Co-Infection,-Finds-National-Study-of-1-5-Million-Women-from-Quest-Diagnostics Quest Diagnostics Reports Second Quarter 2026 Financial Results; Raises Revenue and EPS Guidance for Full Year 2026 https://newsroom.questdiagnostics.com/2026-07-23-Quest-Diagnostics-Reports-Second-Quarter-2026-Financial-Results-Raises-Revenue-and-EPS-Guidance-for-Full-Year-2026 Thu, 23 Jul 2026 06:45:00 -0400 https://newsroom.questdiagnostics.com/2026-07-23-Quest-Diagnostics-Reports-Second-Quarter-2026-Financial-Results-Raises-Revenue-and-EPS-Guidance-for-Full-Year-2026 One in Five American Workers Tested Had a Positive Hair Drug Test in 2025, Signaling Persistent Long-Term Substance Use Patterns https://newsroom.questdiagnostics.com/2026-07-10-One-in-Five-American-Workers-Tested-Had-a-Positive-Hair-Drug-Test-in-2025,-Signaling-Persistent-Long-Term-Substance-Use-Patterns Fri, 10 Jul 2026 09:24:00 -0400 https://newsroom.questdiagnostics.com/2026-07-10-One-in-Five-American-Workers-Tested-Had-a-Positive-Hair-Drug-Test-in-2025,-Signaling-Persistent-Long-Term-Substance-Use-Patterns Quest Diagnostics Now the Largest Clinical Reference Lab to Extend Oncology Test Access Through OncoEMR MPI https://newsroom.questdiagnostics.com/2026-07-08-Quest-Diagnostics-Now-the-Largest-Clinical-Reference-Lab-to-Extend-Oncology-Test-Access-Through-OncoEMR-MPI Wed, 08 Jul 2026 08:52:00 -0400 https://newsroom.questdiagnostics.com/2026-07-08-Quest-Diagnostics-Now-the-Largest-Clinical-Reference-Lab-to-Extend-Oncology-Test-Access-Through-OncoEMR-MPI