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

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The latest
In this episode of “Answers From the Lab,” host Bobbi Pritt, M.D., chair of the Division of Clinical Microbiology at Mayo Clinic, is joined by William Morice II, M.D., Ph.D., president and CEO of Mayo Clinic Laboratories, to discuss updates on the Protecting Access to Medicare Act (PAMA) and other policy changes affecting clinical diagnostics. Later, Dr. Pritt welcomes Ann Moyer, M.D., Ph.D., a molecular genetic pathologist at Mayo Clinic and chair of the hereditary genetics practice, to explore how precision therapeutics are improving cancer treatments.
PACE/State of FL - An in-depth look at the efforts to improve the efficiency and effectiveness of the Autopsy Lab through Lean principles.
John Logan Black, M.D., explains how Mayo Clinic Laboratories' UGT1A1 tests (Mayo IDs: U1A1Q and UGTFZ) identify genetic variants that increase the risk of potentially life-threatening reactions to irinotecan, a chemotherapy agent.
In this episode of Lab Medicine Rounds, Justin Kreuter, M.D., interviews John Sherbeck, M.D., Laboratory Medical Director of Trinity Health IHA Medical Group, about how to plan your time at medical conferences and briefly discusses this year’s takeaways from AABB’s national conference.
William Morice II, M.D., Ph.D., president and chief executive officer of Mayo Clinic Laboratories, recently shared with the Advisory Board his insight into the potential that digital pathology and out-of-lab testing can bring into the laboratory space.
JoAnne Michael’s symptoms started with dizziness and forgetfulness before down spiraling into severe confusion, crying jags, and brain seizures. ER doctors at her local hospital initially thought she was on drugs. JoAnne, terrified, wondered if she was dying. Luckily, she had a guardian angel by her side: her mother, a retired nurse practitioner, who took her to Mayo Clinic, where the clinical experience and expertise of neurologist Andrew McKeon, M.B., B.Ch., M.D., helped give her a diagnosis and hope for a journey back to health.
This month’s microlearning shares the Elicit – Provide – Elicit framework for exchanging information in a collaborative way.
This page lists updates posted to Mayo Clinic Labs during the month of October.
Due to the Thanksgiving holiday (recognized on Thursday, Nov. 28), Mayo Clinic Laboratories' specimen pickup and delivery schedules will be altered. To ensure specimen stability and prevent delays, follow the guidelines outlined below for domestic clients and international clients.
PACE/State of FL - Substance use disorders and the common laboratory tests and matrices used for controlled substance monitoring.
In this episode of “Lab Medicine Rounds,” Justin Kreuter, M.D., interviews Timothy Long, M.D., about the importance of asking good questions in healthcare settings, such as with patients, as an educator, and in conference or presentation settings.
Megan Hoenig, M.S., M.P.H., CGC, explains how Mayo Clinic Laboratories' unique hypermethylation analysis (Mayo ID: MLHPB) provides critical adjunct information for managing Lynch syndrome. That genetic condition increases the risk for many kinds of cancer.
Mayo Clinic Laboratories has developed a cutting-edge suite of Alzheimer's disease testing. The newest assays use blood samples, avoiding the need for lumbar punctures to obtain cerebrospinal fluid. The testing suite exemplifies Mayo Clinic Laboratories' innovative business approach. As a platform company, Mayo Clinic is creating a diagnostics ecosystem to meet a wide range of testing needs and help physicians order the right tests for their patients.