Role of Component-Resolved Testing in Food Allergies: From Peanuts to Red Meat Allergies

This lecture offers the following credit types: CME, P.A.C.E.®, Florida
 

This presentation offers an overview of the pathogenesis of allergy and highlights the role of serology testing for the diagnosis of IgE-mediated food allergies. We cover component-resolved diagnostics and its importance in diagnosing and managing common food allergies, particularly focusing on testing for peanut, tree nuts, eggs, milk, and sesame allergies. Furthermore, we delve into alpha-gal syndrome and present an up-to-date literature review, including our laboratory experience in alpha-gal testing.

Originally published on March 2, 2026

Lecture Presenters

Abdulrahman Saadalla, MB, BCh

Abdulrahman Saadalla, MB, BCh

Assistant Professor (Clinical)
Spencer Fox Eccles School of Medicine at the University of Utah
Medical Director, Immunology Core Lab and Coagulation
ARUP Laboratories

Abdulrahman Saadalla is a medical director of immunology and coagulation at ARUP Laboratories, and an assistant professor (clinical) with the Spencer Fox Eccles School of Medicine at the University of Utah. He received a bachelor of medicine and bachelor of surgery (MBBCh) from Alexandria University. He completed a residency in clinical pathology from the Mayo Clinic as well as fellowships in molecular genetic pathology from the Washington University School of Medicine and special coagulation from the Mayo Clinic. Dr. Saadalla is certified by the American Board of Pathology in clinical pathology and molecular genetic pathology. His research interests include tumor immunology, monoclonal gammopathies, and antiphospholipid syndrome.

Patricia R. Slev, PhD

Patricia R. Slev, PhD

Professor (Clinical)
Spencer Fox Eccles School of Medicine at the University of Utah
Medical Director, Immunology
ARUP Laboratories

Dr. Patricia R. Slev is a medical director of Immunology at ARUP Laboratories and a professor (clinical) with the Spencer Fox Eccles School of Medicine at the University of Utah. Dr. Slev received her doctorate degree in immunology and laboratory medicine from the University of Florida. She then completed a biology fellowship and a clinical chemistry fellowship at the University of Utah. Dr. Slev is board certified. She is the recipient of several awards, including the Outstanding Teaching Award, first place for Fellow Research Presentation, and the Paul E. Strandjord Young Investigator award. Her research interests include HIV and viral hepatitis.

Objectives

After this presentation, participants will be able to:

  • Explain the concept of component-resolved diagnostics and its role in food allergy diagnoses
  • Discuss commonly ordered allergen component panels including alpha-gal, peanut, tree nuts and others
  • Describe the pathophysiology of alpha-gal syndrome and the importance of serology testing

Sponsored by:

Spencer Fox Eccles School of Medicine at the University of Utah, Department of Pathology,
and ARUP Laboratories