What ratio of plasma aldosterone to renin activity suggests primary hyperaldosteronism?

Updated: Feb 22, 2019
  • Author: Matthew R Alexander, MD, PhD; Chief Editor: Eric H Yang, MD  more...
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Answer

Measurement of the ratio of plasma aldosterone to renin activity ratio is the best initial screening test for primary hyperaldosteronism. A ratio of over 20-30 suggests that primary hyperaldosteronism may be present. Some labs require a minimum plasma aldosterone level of 12 ng/dL.


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