Media Coverage

In 2020, as many as 5.8 million Americans were living with Alzheimer’s Disease (AD)—a number projected to nearly triple to 14 million people by 2060.1 As changes in the brain can begin years before the first symptoms appear, the science around assessing risk and diagnosing AD and other dementias is complex and continues to evolve with the publication of new research. (By Michael K. Racke, MD)

Quest Diagnostics reported Tuesday a 7 percent year-over-year increase in its Q4 2025 revenue. Revenue for the three months ended Dec. 31, 2025, was $2.81 billion, up from $2.62 billion in the same quarter last year and above the consensus Wall Street estimate of $2.76 billion. Requisition volumes rose 9 percent during the quarter while revenue per requisition fell less than 1 percent. Organic requisition volume rose 8 percent year over year, the Secaucus, New Jersey-based company said.

Forever chemicals. They’re everywhere — from non-stick pans to seafood to cosmetics. 25 Investigates worked with Quest Diagnostics, which offers a PFAS blood panel that screens for nine common forever chemicals for $350. Quest allowed us to film most of my blood test. We went in before the lab opened one January morning to protect patient privacy. Kavanaugh found the test itself to be quick and painless — just one vial of blood. Quest says it began offering the PFAS blood test in 2024. Quest says theirs is the first PFAS blood test available as a consumer-initiated test with physician oversight based on recommendations by the National Academies of Sciences, Engineering, and Medicine (NASEM).

Quest Diagnostics has rolled out an ultrasensitive blood test to monitor multiple myeloma treatment, potentially sparing patients from more invasive and costly bone marrow aspirations.