Endocrine Abstracts

Introduction: Immunoassays are important tools in the diagnosis and management of disease; however, they are not free from interference by cross-reacting substances. Discordant clinical evidence and laboratory results raised suspicion of interference in a patient with persistently raised parathyroid hormone.Case Presentation: Case description: A 56-year-old Caucasian female previously diagnosed with hypothyroidism consistently demonstrated elevated PTH l...