Setting the global standard of diagnostic care
At Mayo Clinic Laboratories, we believe all patients deserve access to world-class diagnostic care. We work with hospitals and healthcare providers around the world to deliver unparalleled expertise and innovative diagnostic evaluations that solve the most complicated cases.
Fully integrated with Mayo Clinic and backed by more than 150 years of clinical experience, Mayo Clinic Laboratories was built upon a tradition of knowledge sharing to improve healthcare around the world. When you work with us, you gain access to the world’s most sophisticated test menu, world-renowned experts, and educational opportunities to strengthen your practice, advance knowledge, and improve patient outcomes.
Focused on quality
At Mayo Clinic Laboratories, test development is based on patient need and guided by quality management protocols modeled on standards and guidelines from the Clinical and Laboratory Standards Institute. Our extensive test validation includes a breadth of specimens with rare abnormalities. Our laboratories are CLIA-certified and CAP-accredited, and we participate in U.S. and international proficiency programs.
Commitment to education
The exchange of knowledge is a founding principle of Mayo Clinic. In this tradition, we provide a wide range of educational offerings to help our clients increase understanding.
- Regionally based clinical specialists guide best practices through physician education.
- Access to Mayo Clinic Laboratories education and insight articles.
- Many courses offer CME credits.
- Online trainings are available, such as “Dangerous Goods Shipping,” with printable certificates.
Enhanced patient outcomes
Mayo Clinic Laboratories is dedicated to the health and well-being of our patients, which means helping providers deliver care in their local settings through the utilization of our comprehensive subspecialty test menu. Our mission is grounded in our belief that the patient’s needs are paramount, and our clients receive access to:
- Expert-developed algorithms that ensure the right patient receives the right test.
- Testing for rare and complex conditions, with some of that testing exclusive to Mayo Clinic Laboratories.
- Expeditious results due to continuous test processing.
“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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In this episode of “Answers From the Lab,” host Bobbi Pritt, M.D., chair of the Division of Clinical Microbiology at Mayo Clinic, and William Morice II, M.D., Ph.D., CEO and president of Mayo Clinic Laboratories, discuss troublesome organisms making headlines.
Thank you to our staff at Mayo Clinic who step up daily during this time of need to provide access to testing during the global pandemic. We appreciate each one of you and all the sacrifices you personally have made throughout this past year.
In this month’s “Hot Topic,” Julia Lehman, M.D., discusses serologic testing for Celiac Disease in patients with IgA deficiency.
Controlled substance testing options vary in the details they provide about patient drug use, painting an incomplete picture of usage patterns that can hinder accurate prescription monitoring and treatment outcomes. However, a new comprehensive Controlled Substance Monitoring Panel, developed by the Clinical and Forensic Toxicology Laboratory at Mayo Clinic Laboratories, offers in-depth analysis on more than 70 different prescription medications and illicit substances to provide clinicians with details and interpretations on patients’ controlled substance use lacking in other laboratory assays.
Puanani Hopson, D.O., a Mayo Clinic pediatric gastroenterologist, explains the pancreatic elastase test — a screening test that can be useful when symptoms point to the possibility of exocrine pancreatic insufficiency. Dr. Hopson reviews when this test should be ordered, how it compares to other test options, and how its results can guide further evaluation.
With the rise of next generation sequencing (NGS) technology, multigene panel testing is expanding so rapidly that clinical practice is racing to keep pace. And questions within genetic tests have expanded along with it, making definitive answers more challenging to come by. Experts in the Genomics Laboratory in Mayo Clinic's Department of Laboratory Medicine and Pathology work to explain this often misunderstood technology.
Dendritic cells play a crucial role in the body's immune response. Research has shown that too few of these cells in the blood may signal a defect in innate immunity. Up to this point, however, no clinical test has been available to count dendritic cells.
Practical aspects and pitfalls in the molecular diagnosis of brain tumors.
William Morice II, M.D., Ph.D., chair of the Department of Laboratory Medicine and Pathology at Mayo Clinic and president of Mayo Clinic Laboratories, joins the "Answers From the Lab" podcast for his weekly leadership update. In this episode, Dr. Morice and Bobbi Pritt, M.D., look back at how the COVID-19 pandemic reshaped laboratory medicine throughout 2020.
Due to the holiday season, Mayo Clinic Laboratories' specimen pickup and delivery schedules will be altered. To ensure that your specimen vitality and turnaround times are not affected, please plan ahead.
In this month’s “Hot Topic,” John Mills, Ph.D., explains the central role of tissue immunofluorescence in the identification of neural antibodies and discusses the benefits of an integrated laboratory approach to the development and validation of novel antibody biomarkers.
A massive effort that involved numerous departments and experts, culminated in Mayo Clinic designing, testing and mass-manufacturing a 3D-printed mid-turbinate swab for COVID-19 testing.
Anja Roden, M.D., a medical director for Mayo Clinic's Immunohistochemistry Laboratory, joins this episode of the "Answers From the Lab" podcast. Dr. Roden and Bobbi Pritt, M.D., discuss the development and evaluation of immunohistochemistry in situ hybridization and polymerase chain reaction for detection of SARS-CoV-2 in formalin-fixed paraffin-embedded tissues.