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.
This case presents an unusual colon polyp on an asymptomatic early 70 year-old male. At the time of screening colonoscopy, two small left colon polyps were noted and excised. What is the diagnosis?
Ann Moyer, M.D., Ph.D., discusses an additional gene, NUDT15, which is important in the prediction of thiopurine-related toxicity This gene has been added to our TPMT genotyping assay available through Mayo Medical Laboratories.
In the war against microbes, human beings are vastly outnumbered—and losing the weapons race.
Ultimately, a pathologist has to commit to a diagnosis. Many trainees have difficulty committing to a diagnosis for fear of being wrong. Gary Keeney, M.D., Consultant in the Division of Anatomic Pathology at Mayo Clinic, provides a unique teaching approach with his cases, detailing the ancillary studies and discussing the differential diagnosis of the cases. View case #2.
Devin Oglesbee, Ph.D., Director of the Biochemical and Molecular Genetics Laboratories at Mayo Clinic, provides an overview of the lysosomal storage disease panel, when it is appropriate to order this test, what actions the results allow you to take, and how this test improves upon previous approaches.
In this month’s “Hot Topic,” Alicia Algeciras-Schimnich, Ph.D., will provide you with valuable information regarding the utility of the prostate specific antigen test, and how the calculation of a prostate health index, or phi, can help to stratify a patient’s risk for prostate cancer and reduce unnecessary biopsies.
Teamwork is critical among staff from Mayo Clinic, the Centers for Disease Control and Prevention, Minnesota Department of Health, and the University of Wisconsin-Madison in order to keep tabs on tick trends and defend against vector-borne diseases.
Montana Smith, a student in Mayo Clinic’s Medical Laboratory Science program, reflects on her experience in the program.
Justin Kreuter, M.D., discusses the importance of identifying the "blind spots" in your career and shares some of his own experiences from a patient blood-management conference.
Mike Baisch, Systems Engineer at Mayo Clinic, discusses how to apply the staffing-to-workload methodology to a series of case studies. This post highlights a “basic” staffing model.
Mike Baisch, Systems Engineer at Mayo Clinic, discusses the mechanics of performing a staffing-to-workload analysis in the testing laboratories. There are three primary areas of focus with staffing needs: direct effort, indirect effort, and operational needs. This post focuses on operational needs.
Detection of individuals with low thiopurine methyltransferase (TPMT) activity who are at risk for excessive myelosuppression or severe hematopoietic toxicity when taking thiopurine drugs.