Endocrine Abstracts

Background: 1-mg overnight dexamethasone-suppression test (DST) is commonly used to screen for hypercortisolism. Sensitivity is high (95%), but specificity is low (80%), leading to false positive results. Identifying individuals with abnormal dexamethasone absorption or metabolism could enhance diagnostic accuracy.Aim: Use serum dexamethasone (s-DXT) to increase diagnostic accuracy of DST.Methods: Prospective study of DST for clini...