Group Lead at Quest. Mom at heart. 💚 For Debbie Gifford, her daughter is her biggest inspiration. Read her story. bit.ly/4hujrhn #QuestPurpose #TheQuestWay #QuestDiagnostics

Testing for antibodies that help diagnose type 1 diabetes (T1D) increased since treatment became available. Learn more here: bit.ly/4cI7hzL

Alongside fellow volunteers, our team participated in a National Day of Service organized by nonprofit @911day. We helped assemble healthy meals that will be donated through Feeding America-affiliated food banks to support communities facing food insecurity. #NeverForget

"If you are just starting out or thinking about making a career pivot: raise your hand, seek out community, and don't be afraid of the deep end.” – Treavone Garrett, Manager, Environmental Health and Safety (EHS), Quest Diagnostics. Read his story: bit.ly/4zWkKxY

We're excited to announce that individuals in the U.S. can now add Humanity Biological Age's lab-informed insights to select health profile tests purchased through questhealth.com.

A step forward in Alzheimer's disease diagnostics. We will offer Roche's FDA-cleared Elecsys® pTau217 blood test through our AD-Detect® portfolio, expanding access to an important blood-based biomarker for assessing Alzheimer's disease pathology. newsroom.questdiagnostics.co…

We continue to expand our testing portfolio by investing in research and development and applying what we learn to new and current tests. Learn more about our innovation efforts in the 2025 Corporate Responsibility Report. prn.to/4eqsluK

Our CEO and President, Jim Davis joined The Claman Countdown to discuss the growing demand for consumer testing and how AI is supporting better experiences for patients and healthcare providers alike. 🎥: fxn.ws/4xjRb7b

Over the past five years, the Quest Diagnostics Foundation has has addressed key gaps in testing, diagnosis, and care. Learn more in our 2025 Corporate Responsibility Report. prn.to/4eqsluK

Comprehensive testing for sexually transmitted disease is important for women with bacterial vaginosis, as they have increased risk of non-viral sexually transmitted infections. See the results here: bit.ly/4wGykDy

Happy National Intern Day! We're proud to have 68 interns spending their summer at Quest, learning, growing, and making an impact across our organization. We know this is just the beginning of what's sure to be an incredible journey! 💚 #NationalInternDay

The current increase in cyclosporiasis cases serves as a reminder of the importance of timely testing. If cyclosporiasis is suspected, our Cyclospora test can help support diagnosis and provide essential information to guide next steps. Learn more: bit.ly/4vR8Nq9

By broadening access and deepening impact, Quest is illuminating paths to better health. Lean more in our 2025 Corporate Responsibility Report. prn.to/4eqsluK

Access to quality care starts with strong communities. The Quest Diagnostics Foundation was proud to support Urban Health Partnerships and their Wellness Day at the Grove on June 28, 2026 alongside fellow grantees @US_Hunger, @HealthCouncilSF, and @FIU Foundation.

We're proud to announce that Quest Diagnostics is now the largest clinical reference lab to integrate oncology tests in OncoEMR using the opt-in OncoEMR Molecular Profiling Integration (MPI) ordering feature. Read more: bit.ly/4brWiJV

"I enjoy working at Quest because I like taking care of customers and enjoy having the ability to interact with them on my route." - Barry Martens, Route Service Representative, Quest Diagnostics. Read his story: bit.ly/4anPX1T #QuestPurpose #TheQuestWay

In our 2025 Corporate Responsibility Report, Chairman, CEO and President Jim Davis shares his perspective on the role Quest plays in helping build a healthier future through innovation, collaboration, and a commitment to those we serve. Read more: prn.to/4eqsluK

Join us in celebrating National Logistics Day and the dedicated team members who help keep our operations running smoothly. Their hard work and attention to detail help ensure specimens are delivered with care, every step of the way. 💚 #NationalLogisticsDay

A significant milestone for Haystack MRD® by Quest Diagnostics® and the patients we serve. With New York State approval, @HaystackMRD is now available in all 50 U.S. states, helping expand access to advanced cancer monitoring. newsroom.questdiagnostics.co…

Both standard two-tier and modified two-tier testing are recommended by the CDC for Lyme disease. Dr Ann Salm shares how Quest Diagnostics offers both approaches, helping providers choose based on clinical context. Learn more on The Results Are In: bit.ly/4veUqMt