Our latest episode of QuidelOrtho Science Bytes features Dr. Lindy Carlstrom, Global Medical Affairs Manager for Acute Care, unpacking how high-sensitivity troponin is reshaping early cardiac diagnosis, where seconds matter most.

From detecting heart injury earlier and reducing emergency department bottlenecks to improving equity in cardiac care with sex-specific cutoffs, this episode highlights how precision diagnostics are accelerating decision-making and improving patient outcomes. Dr. Carlstrom explains the power of serial testing, the importance of assay precision and why today’s emergency teams rely on high-sensitivity troponin to confidently rule in, or rule out, acute coronary events.

High sensitivity troponin is more than a test, it’s a critical link in a faster, safer, more informed cardiac care pathway. Tune in to learn how this powerful tool is helping clinicians deliver timely insight when it matters most.

About Our Speaker:

Dr. Lindy Carlstrom, Global Medical Affairs Manager for QuidelOrtho

Lindy's clinical experience spans from emergency medicine to critical care and primary care. Currently, she's responsible for providing medical support for the QuidelOrtho acute care menu throughout the product life cycle. Lindy is passionate about clinical education, testing guideline updates and assay utilization to drive improved patient-centered outcomes.

Our 55th episode of QuidelOrtho Science Bytes features Michelle Mullens, Global Portfolio Marketing Manager for Transfusion Medicine, diving into the evolving realities of today’s blood supply, and why steady, year‑round donation is critical to modern healthcare.

From the constant demand driven by everyday trauma to climate‑related disruptions that strain regional inventories, shifting prehospital practices that rely heavily on universal blood types and the growing role of automation in stabilizing testing workflows, this episode explores the interconnected systems that keep patients safe. Mullens shares how donor habits, resilient infrastructure and smarter immunohematology platforms help ensure blood is available when and where it’s needed most.

Sustaining the blood supply isn’t just about meeting demand, it’s about building a resilient, connected system where donors, diagnostics and clinical care work together to protect patients every day.

About Our Speaker:

Michelle Mullens

Global Portfolio Marketing Manager for Transfusion Medicine, QuidelOrtho

Michelle brings invaluable insight to both the science and human impact of blood donation. Before starting her career on the corporate side, Michelle was a Senior Medical Technologist at Baptist Health, serving in leadership roles for transfusion medicine and immunohematology. Prior to taking on her current role in the global business unit at QuidelOrtho, Michelle served as a technical specialist, business development consultant and clinical science liaison. With significant experience in the blood bank and as a trusted provider to the profession, Michelle brings a unique perspective to the conversation today.

Our 54th episode of QuidelOrtho Science Bytes features Jonathan Siegrist, PhD, Executive Vice President of Research & Development and Chief Technology Officer, exploring the breakthroughs shaping diagnostics in 2025.

From high-sensitivity troponin testing for faster cardiac care to non-invasive assays improving gastrointestinal health, rapid combo tests for respiratory surges and advances in molecular diagnostics, informatics and AI – these innovations are transforming workflows, guiding timely decisions and redefining patient care across the continuum.

Dr. Siegrist shares how cutting-edge research and next-generation platforms are driving smarter diagnostics – delivering fast, reliable insights that empower clinicians and improve outcomes worldwide.

About Our Speaker:

Jonathan Siegrist, PhD

Executive Vice President of Research & Development & Chief Technology Officer at QuidelOrtho

Jonathan is responsible for the company’s global R&D strategy, driving innovation and advancing next-generation diagnostic solutions. He brings over 15 years of leadership experience in the biotechnology and diagnostics industries, with a focus on molecular diagnostics, microfluidic platforms and biomedical engineering. Before joining QuidelOrtho, Jonathan served as Chief Technology Officer and head of assay research and development at Cepheid. Throughout his career, he has been recognized for his ability to lead complex, multidisciplinary teams while fostering a culture of creativity and innovation. Jonathan holds a PhD and Master of Science in biomedical engineering from the University of California, Irvine, and a Bachelor of Science in electrical engineering from the University of California, Los Angeles.