Dexamethasone Inhibition of Aldosterone Test

The dexamethasone inhibitory aldosterone test is performed by the following principle. Among the primary aldosteronisms, there is a special type called glucocorticoid-suppressable aldosteronism. It has the following characteristics: (1) the clinical manifestations are the same as the classic primary aldosteronism; (2) the patients are young, and most of them develop before the age of 20; (3) there is a tendency to familial attack; The basis is bilateral adrenal hyperplasia; (5) ACTH dependence.