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PD-L1 Testing by Immunohistochemistry - Insights

In this month's "Hot Topic," Anja Roden, M.D., discusses the role of PD-L1 interaction in the immune system, challenges of PD-L1 testing, and current PD-L1 companion testing in various tumor types.

Lyme Disease, Part 2: Borrelia mayonii-A New Cause of Lyme Disease in Upper Midwest - Insights

In this “Hot Topic,” Bobbi Pritt, M.D., discusses how Lyme disease is the most common vector-borne illness in the United States and Europe and caused primarily by Borrelia burgdorferi in the United States, while B burgdorferi, B afzelii,...

#ASH18 Live Blog - Insights

Our Mayo Clinic colleagues are in San Diego for the 60th American Society of Hematology Annual Meeting and Exhibition. Follow this blog for live updates from #ASH18 as we attend the conference, mingle with colleagues at booth #2927, and...

Optic Neuritis in the Era of Biomarkers - Insights

Antibodies to aquaporin-4 and myelin oligodendrocyte glycoprotein (MOG) are recently described biomarkers seen in a subset of atypical optic neuritis which have revolutionized our understanding of the condition. In this “Hot Topic,” my...

Pathways Case Studies: April 2022 - Insights

This "Pathways" program provides Anatomic and Clinical Pathology cases that include a history, potential answers, rationale, and relevant references. Cases for April include the following sub-specialties: Bone and Soft Tissue Pathology,...

MCL Pharmacogenomic Associations Tables MC409162

MCL Pharmacogenomic Associations Tables Pharmacogenomic Association Tables Disclaimer included tables educational purposes making clinical decisions

policies - Mayo Clinic Laboratories

Test Catalog AlgorithmsDownload Test Catalog & Interpretive HandbookNew TestsNY State Informed Consent TestsPerforming LocationsReferred TestsSpecialty TestingTest Updates...

Pathways Case Studies: December 2022 - Insights

This "Pathways" program provides Anatomic and Clinical Pathology cases that include a history, potential answers, rationale, and relevant references. Cases for December include the following sub-specialties: Bone and Soft Tissue Pathology,...

Antibody Prevalence in Epilepsy and Encephalopathy (APE2) Score - Insights

In this month’s “Hot Topic,” Divyanshu Dubey, M.B.B.S., discusses how patients with encephalopathy and/or epilepsy of unknown etiology may have an autoimmune or paraneoplastic cause.

MCL Biochemical Genetics Test Request MC076716A

MCL Biochemical Genetics Test Request Complete print Reset Form Biochemical Genetics Test Request Client Information required Client Client Account Client Phone Client

Phlebotomy Top Gun: Safe Handling of Laboratory Specimens During the COVID-19 Pandemic - Insights

In this month’s “Hot Topic,” Brad Karon, M.D., Ph.D., addresses the safe handling of laboratory specimens submitted during the COVID-19 pandemic through his yearly Phlebotomy Top Gun presentation based on the previous year’s Phlebotomy...

Detection of (1→3)-𝝱-D-glucan as a Marker of Invasive Fungal Disease - Insights

In this month’s “Hot Topic,” Elitza Theel, Ph.D., will discuss the detection of (1→3)-β-D-glucan (BDG) in serum as a biomarker for the presence of invasive fungal infections.

Infective Endocarditis - Insights

In this month’s “Hot Topic,” Robin Patel, M.D., will review the laboratory methods used to diagnose infectious endocarditis. Specifically, she’ll discuss the role of blood cultures, nucleic acid amplification tests, histopathology, and...

MCL Urine Preservative Chart MC123587

MCL Urine Preservative Chart Urine Preservatives Collection Transportation 24 Hour Urine Specimens Department Laboratory Medicine Pathology Clinic

Autoimmune Encephalopathy Testing - Mayo Clinic Laboratories

Our phenotype specific testing for autoimmune encephalopathy contains only clinically relevant antibodies providing accurate answers for treatment guidance.

Weeding Through the Information: Interpreting Laboratory Tests to Determine New vs. Residual Use of Marijuana - Insights

In this month's "Hot Topic," Paul Jannetto, Ph.D., identifies how to determine new vs. residual use of marijuana in a patient, and teaches how to calculate the carboxy-tetrahydrocannabinol (carboxy-THC) to creatinine ratio along with a...

Surprises in Coagulation Testing - Insights

In this “Hot Topic,” William Nichols, M.D., presents a case study that demonstrates how pre- and postanalytic variables of the patient and blood samples can have confounding effects on the laboratory evaluation of coagulation disorders.

Matrix-Assisted Laser Desorption/Ionization-Time of Flight Mass Spectrometry in Clinical Microbiology - Insights

In this month’s “Hot Topic,” Robin Patel, M.D., discusses how matrix-assisted laser desorption ionization time of flight (MALDI TOF) mass spectrometry works for bacterial identification, including the strengths and limitations of this...

Lyme Disease Part 1: The Common Culprits Worldwide-Borrelia burgdorferi, Borrelia garinii, Borrelia afzelii - Insights

In this “Hot Topic,” Elitza Theel, Ph.D., discusses how common cases of presumed Lyme disease go unreported each year and discusses scenarios in which testing for Lyme disease is indicated and reviews both recommended and inappropriate...

MCL Whole Genome Sequencing Ordering Checklist MC1235301

MCL Genome Sequencing Ordering Checklist Complete print Genome Sequencing Ordering Checklist Reset Form Instructions Select box test requested

Update on 2021 WHO classification of lung tumors - Insights

In this month’s “Hot Topic,” Anja Roden, M.D., discusses new entities and changes of terminology in the 2021 World Health Organization (WHO) classification of lung tumors as well as the nomenclature in small biopsies.

us-courier-instructions.pdf

U N ITED STATES C O U RIER SH IPPIN G G U ID E TRANSPORTING SPECIMENS WITHIN THE UNITED STATES 2 | UNITED STATES SHIPPING GUIDE THIS GUIDE HAS BEEN DEVELOPED TO MEET THE FOLLOWING OBJECTIVES: • Provide instructions for packaging...

MCL Whole Exome Sequencing Ordering Checklist MC1235222

MCL Exome Sequencing Ordering Checklist Complete print Exome Sequencing Ordering Checklist Reset Form Instructions Select box test requested

Understanding Membranoproliferative Glomerulonephritis, Including C3 Glomerulopathy: Part 2 - Insights

Membranoproliferative glomerulonephritis (MPGN) is a pattern of glomerular injury. Based on the etiology of MPGN, Drs. Sethi and Fervenza proposed a new histologic classification of MPGN into Ig/IC-mediated MPGN and complement-mediated...

Antifungal Drug Susceptibility Testing of Yeast: A Primer for Beginners - Insights

In this month’s “Hot Topic,” Nancy Wengenack, Ph.D., discusses susceptibility testing of yeast for those who are considering performing it in their laboratory, perhaps for the first time, or for those who choose to send their yeast isolates...

https://www.mayocliniclabs.com/-/media/mediax/customer-service/mayoaccess/ma-workstation-setup-guide.pdf?sc_lang=en&hash=80F7F54389FE5FFAE754B5711FC4EF75

MayoACCESS® Workstation Setup Guide Page 2 4/28/25 MayoACCESS Workstation Setup Guide TABLE OF CONTENTS Introduction...

wes-wgs-information-test-ordering-guide.pdf

GEN ETICS +Turnaround time begins upon receipt of all samples and required paperwork. ^Whole blood is the preferred specimen type. ŧCPT codes 81416 or 81426 are applied to proband when a family member comparator is submitted. This code...

Pleural Mesothelioma - Insights

In this month's "Hot Topic," Anja Roden, M.D., a thoracic pathologist at Mayo Clinic, gives an update on the 2021 World Health Organization (WHO) classification and ancillary testing of pleural mesothelioma.

MCL Allergen Test Request MC076708

MCL Allergen Test Request Complete print Reset Form Allergen Test Request Client Information required Client Patient Information required Patient ID Medical Record

Understanding Membranoproliferative Glomerulonephritis, Including C3 Glomerulopathy: Part 1 - Insights

Membranoproliferative glomerulonephritis (MPGN) is a pattern of glomerular injury. Based on the etiology of MPGN, Drs. Sethi and Fervenza proposed a new histologic classification of MPGN into Ig/IC-mediated MPGN and complement-mediated...

CPT Codes and LOINC Update: September 2020 - Insights

The following list includes updates posted to mayocliniclabs.com during the month of September

MCL Pricing Custom Gene Ordering MC4091141

MCL Pricing Custom Gene Ordering Custom Gene Panel Ordering Pricing Tiers CGPH Custom Gene Panel Hereditary Generation Sequencing NGS Varies Explanation Pricing

MCL - Request for Original Newborn Screening Card - MC1235-156

MCL - Request for Original Newborn Screening Card

Test Classification Updates - Mayo Clinic Laboratories

Test Catalog AlgorithmsDownload Test Catalog & Interpretive HandbookNew TestsNY State Informed Consent TestsPerforming LocationsReferred TestsSpecialty TestingTest Updates...

Leveraging the Laboratory: Seize Tomorrow - Video Presentations - Insights