Dexamethasone suppression test
Medical test / From Wikipedia, the free encyclopedia
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The dexamethasone suppression test (DST) is used to assess adrenal gland function by measuring how cortisol levels change in response to oral doses or an injection of dexamethasone.[1] It is typically used to diagnose Cushing's syndrome.
The DST was historically used for diagnosing depression, but by 1988 it was considered to be "at best, severely limited in its clinical ability" for this purpose.[2]