This morning, we released our fourth quarter and full year 2025 financial results: https://t.co/DwnB3i70Q5

Today is National Wear Red Day. Heart disease remains the leading health risk for women, yet many heart disease and stroke deaths can be prevented. This Heart Month and beyond, we're committed to helping reduce risk. #WearRedDay #GoRedforWomen #HeartMonth

We're announcing the launch of Quest Flow Cytometry MRD for Myeloma, a novel blood test that uses advanced flow cytometry methods to assess measurable residual disease (MRD) in patients with the blood cancer myeloma.

Today, we honor the life and legacy of Dr. Martin Luther King Jr. His commitment to equity and dignity inspires us to keep working toward a healthier future for all. #MLKDay #BetterHealthForAll

Our IsoPSA Test was featured in @CLPmag’s look at the 2026 lab landscape. Industry leaders, including @QuestDX, expect tests the like IsoPSA Test to become standardof care in csPCa diagnosis. https://t.co/Vj2FdEy8FC

https://t.co/h4G3yhE3Uy

An undetectable HIV viral load doesn’t mean the virus is gone, just that it’s suppressed. Even so, low-level “blips” can happen. When are they harmless, and when do they need further investigation? Hear more on The Results Are In: https://t.co/uKXrNuRYsr

A memorable moment in Times Square. The Nasdaq Tower spotlighted our new collaboration with Octave Bioscience to expand patient access to the Octave® Multiple Sclerosis Disease Activity (MSDA) Test nationwide. Read more: https://t.co/BN2xiCgX9m

Thanks to the leaders at @QuestDX @CLEHeartLab for an informative visit this week. The facility in Midtown Cleveland, which features a research and development laboratory, offers innovative biomarker technologies that can predict cardiovascular risk. A very interesting tour!

At Quest, we invest in a work environment where employees want to grow, thrive, and stay. Proud to appear on @TIME's 2026 list of Best Companies for Future Leaders. #TheQuestWay #FutureLeaders #BestCompanies #HealthcareLeadership

Has resistance to HIV-1 antiretrovirals changed since 2018? See the results: https://t.co/lPVLGocoQs #DrugResistance #ClinicalEducation

This Veterans Day, we recognize and celebrate our Quest colleagues who have served in the armed forces, including Will Lawrence who dedicated 12 years to the U.S. Army as a Sergeant. We are honored to have Will on our team as a Sr Financial Analyst - IT Finance. #VeteransDay

HIV, hepatitis B, and hepatitis C don’t just pose isolated risks. Dr. Meghan Starolis explains how coinfections can increase the risk of end-stage liver disease by up to 12x. Hear more on The Results Are In: https://t.co/b0prEjZCoQ

We’re proud to bring digital cytology and FDA-cleared AI into our cervical cancer screening process. The Hologic® Genius™ Digital Diagnostics System will allow our cytotechnologists and pathologists to interpret samples with increased screening efficiency and disease detection.

Quest AD-Detect® blood-based test panels deliver confirmatory accuracy, potentially supporting reduced reliance on PET-imaging confirmation.

During #InfectiousDiseaseWeek, we recognize the vital role of clinical laboratories in providing the critical data that guides patient care and protects public health. Learn more from @QuestDX's Dr. Beth Marlowe on #ThePowerofKnowing.

This morning, we released our third quarter 2025 financial results: https://t.co/6hc0dgz3Wc

Can using multiple plasma biomarkers help evaluate for amyloid pathology among patients with mild cognitive impairment (MCI) or suspected Alzheimer’s disease (AD)?

An exclusive benefit for Nutley Chamber members was the opportunity to participate in the @QuestDX Health & Wellness Fair at their Clifton lab this week, featuring our fantastic local businesses, community organizations and Quest’s employee business networks.

Together with @HMHNewJersey, we're helping educate the next generation of health care providers in New Jersey.