Morning Salivary Cortisone Versus Serum Cortisol in the Overnight Dexamethasone Suppression Test (ODNST): Evaluation in a Clinical Setting.

Introduction: Saliva hormone measurement is increasingly being applied in everyday clinical practice. In relation to salivary cortisone measurement, there is a particular advantage, with minimal chance of cross-reaction with prescribed glucocorticoids and greater convenience. We evaluated the utility of salivary cortisone measurement in patients undergoing an overnight dexamethasone suppression test (ONDST).