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 Mayo Clinic’s Advanced Diagnostics Laboratory, there are dozens of projects underway at once to develop new technologies, discover novel findings, validate new tests, and support physicians in providing advanced patient care. For example, researchers are using phage immunoprecipitation sequencing (PhIP-Seq) to discover new serological biomarkers for autoimmune diseases. In a recent study using PhIP-Seq, Mayo Clinic researchers discovered a previously unknown antibody marker for immune-mediated rippling muscle disease (iRMD). This finding will support testing options and accurate diagnosis of iRMD, helping physicians treat patients with iRMD and restore their quality of life.
Paul Jannetto, Ph.D., describes Mayo Clinic Laboratories' new direct biomarker test for alcohol consumption. PETH is a blood test with a window of detection of about two to four weeks — compared with five days for urine-based screening for alcohol use.
Two leaders have been announced to lead Mayo Clinic Laboratories and other diagnostic services in the biopharma and cardiovascular spaces. William Morice II, M.D., Ph.D., has been named CEO and president and Mary Jo Williamson has been named chief administrative officer.
Ann Moyer, M.D., Ph.D., and Paul Jannetto, Ph.D., explain how precision therapeutics can improve treatment for patients with major depressive disorder. The optimal antidepressant medication and dose vary among individuals. Pharmacogenomic testing and therapeutic drug monitoring can guide clinicians to the most-effective treatment for each patient.
Kenneth Hobby assumed his fever, fatigue, and aching pains in May 2018 were from another bout of malaria. He was on one of his frequent visits to Zambia in southern Africa, where the mosquito-borne parasite is common. But anti-malaria drugs didn't help, and soon Kenneth had such disabling pain that he could barely walk.
In this episode of “Lab Medicine Rounds,” Justin Kreuter, M.D., sits down with Melanie Bois, M.D., Associate Professor of Laboratory Medicine and Pathology, a cardiovascular pathologist, and host of the Society for Cardiovascular Pathologies Podcast, to discuss why you should consider utilizing social media within your practice and how to maximize your efforts.
This list includes updates posted to mayocliniclabs.com during the month of August.
Linnea M. Baudhuin, Ph.D., and Emily K. Thoreson, M.S., CGC, explain how Mayo Clinic Laboratories renal genetics testing provides comprehensive, accurate and actionable results. Identifying a genetic cause helps guide the complex decisions involved with treating kidney disease.
Due to the Labor Day holiday (recognized on Monday, September 5th), Mayo Clinic Laboratories' specimen pickup and delivery schedules will be altered. To ensure that your specimen vitality and turnaround times are not affected, plan ahead.
John Lieske, M.D., describes Mayo Clinic Laboratories' new test for primary membranous nephropathy. PMND1 is a diagnostic cascade that provides a cost-effective approach to detecting antigens known to cause membranous nephropathy — a condition that can lead to kidney failure.
Rong He, M.D., describes how Mayo Clinic Laboratories’ NPM1Q assay detects all known forms of a genetic mutation found in about 30% of people with acute myeloid leukemia, or AML. Identifying the NPM1 mutation is critical for clinical decision-making.
Rajiv Pruthi, M.B.B.S., explains how Mayo Clinic Laboratories’ serotonin release assay achieves high sensitivity and specificity while avoiding the use of radioactive materials. Serotonin release testing is an important tool in the diagnosis of heparin induced thrombocytopenia, or HIT, which can have devastating consequences for patients.