Ending diagnostic odysseys and inspiring hope
For patients with rare and complex conditions, physicians and other healthcare professionals need trusted answers. Our tests are developed through leading-edge research and unmatched clinical expertise, creating a diagnostics ecosystem that delivers insights that set a new standard in diagnostic care.
Successful patient outcomes are our priority, and we work with hospitals and physicians around the world to elevate diagnostic excellence everywhere. As part of Mayo Clinic’s healthcare system, we understand the best care is provided locally. We complement local expertise by working with clients and logistics organizations to optimize the specimen journey to our laboratories, enabling physicians to get the results they need and patients to remain at home, focused on healing.
Relentless pursuit of answers
Ongoing research propels test development at Mayo Clinic Laboratories, enabling innovative testing that delivers faster, reliable answers to confidently diagnose patients. Our test results not only equip physicians and patients with meaningful diagnostic, prognostic, and therapeutic insights, they also provide hope for a healthier future.
Experience and expertise you can trust
Mayo Clinic Laboratories’ scientists and physicians are leaders in their fields and able to consult on test selection, utilization, and results interpretation. The exchange of knowledge is a founding principle of Mayo Clinic, and we are committed to sharing lessons we’ve learned with our global collaborators through educational opportunities to help improve care delivery in local practices. This is supported through an expansive library of educational content, podcasts, and stories that showcase breakthroughs in test development and perspectives from Mayo Clinic experts.
Access to groundbreaking diagnostics
Driven by an instinct to innovate, we transform scientific discoveries into meaningful advancements in diagnostic testing. Supported by a robust network of Mayo Clinic physicians and scientists and forward-thinking laboratory partners, we foster access to new and advanced testing, much of which is unavailable elsewhere. This integration connects physicians and hospitals around the world with multiple innovative solutions all in one place to support better patient outcomes.
“We treat all of the specimens we receive with the same high degree of care and quality, regardless of where the sample is coming from. We could be testing a sample from a patient that lives in Rochester, Minnesota, or from someone that lives halfway across the world.”
Bobbi Pritt, M.D., Director of the Clinical Parasitology Laboratory

OUR DIFFERENCE
News and updates
The latest
Genome-wide methylation profiling is transforming the way clinicians approach brain tumor diagnosis. By analyzing epigenetic patterns across the genome, this advanced testing method provides a new level of precision, helping resolve ambiguous cases, reduce diagnostic variability, and support more confident clinical decision-making in complex CNS tumors.
In this test specific episode of the "Answers From the Lab" podcast, Ruifeng (Ray) Guo, M.D., Ph.D., explains how Mayo Clinic Laboratories' comprehensive melanoma panel better informs prognosis and treatment.
In the inaugural episode of the "Leveraging the Laboratory" podcast, host Jane Hermansen, outreach manager at Mayo Clinic Laboratories, is joined by outreach colleagues Brianne Newton and Ellen Dijkman Dulkes. They discuss their laboratory backgrounds, the history and importance of laboratory outreach, and how their work can support the growth of hospital laboratories.
Rondell Graham, M.B.B.S., describes Mayo Clinic Laboratories' new colorectal cancer panel. The assay covers more genes to better inform decision-making about prognosis, targeted therapies and a hereditary cancer syndrome.
Ying-Chun Lo, M.D., Ph.D., explains how Mayo Clinic Laboratories' updated lung panel can better guide clinical decision-making, particularly about targeted lung cancer therapies.
In this episode of “Lab Medicine Rounds,” Justin Kreuter, M.D., sits down with Justin Juskewitch, M.D., Ph.D., and Andrew Norgan, M.D., Ph.D., both assistant professors of laboratory medicine and pathology at Mayo Clinic, to talk about informatics for the pathologist.
Andrew McKeon, M.B., B.Ch., M.D., explains how Mayo Clinic Laboratories' pediatric autoimmune/CNS testing can better guide the treatment of autoimmune neurological diseases in children. The tailored evaluation covers only biomarkers relevant to pediatric presentations of the diseases.
Loralie Langman, Ph.D., explains the difference between chain of custody and clinical toxicology testing. Chain of custody is a process used for toxicology testing when the results might have legal implications for the individual tested. Clinical toxicology testing is used for routine medical care. Mayo Clinic Laboratories offers a full range of clinical and forensic toxicology testing.
In this episode of “Lab Medicine Rounds,” Justin Kreuter, M.D., sits down with Matt Binnicker, Ph.D., director of Clinical Virology and vice chair of practice in the Department of Laboratory Medicine and Pathology at Mayo Clinic, to discuss the laboratory medicine perspective of Monkeypox.
This list includes updates posted to mayocliniclabs.com during the month of September.
Lisa Brown, quality specialist for Mayo Clinic Laboratories customer service, explains working "behind the scenes" when a client calls Mayo Clinic Laboratories with an inquiry, that call is typically picked up within 20 seconds by an agent from Mayo Laboratory Inquiry (MLI). There are no phone trees or automated menus to wade through before they reach an agent. Agents mind the phones 24/7, 365 days a year.
Katherine Geiersbach, M.D., explains how Mayo Clinic Laboratories' PIK3CA assay informs breast cancer treatment. The assay identifies patients eligible for a certain second-line therapy when initial treatment has failed.
By collaborating with Mayo Clinic Laboratories, Morris Hospital & Healthcare Center has been able to expand complex and specialized lab testing in the communities they serve.