When is the dexamethasone suppression test indicated in the workup of primary aldosteronism?

Updated: Mar 24, 2020
  • Author: Gabriel I Uwaifo, MD; Chief Editor: Romesh Khardori, MD, PhD, FACP  more...
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Answer

This test is relevant only in the setting of possible familial aldosteronism. Customarily, in patients with primary aldosteronism, dexamethasone is associated with a transient slight-to-moderate reduction of plasma and urinary aldosterone levels, although not into the normal reference range. [7]


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