【Brian】評論
The dexamethasone suppression tests assess the pituitary corticotroph cell response to glucocorticoid negative feedback inhibition of corticotropin (ACTH) secretion. Dexamethasone is a potent glucocorticoid, about 30 to 40 times more potent than cortisol. Thus, the average daily maintenance dose of dexamethasone for a patient with adrenal insufficiency is 0.5 mg, versus 20 mg for hydrocortisone.resource: uptodate