Validity of the aldosterone-renin ratio used to screen for primary aldosteronism

Mayo Clinic Proceedings | September 1, 2001| | Copyright

* Objective: To determine whether the calculated ratio of plasma aldosterone concentration (PAC) to plasma renin activity (PRA), a proposed screening test for primary aldosteronism, provides a renin-independent measure of circulating aldosterone that is suitable to judge whether PAC is inappropriately elevated relative to PRA.

* Subjects and Methods: This study consisting of 221 black and 276 white subjects with previously diagnosed essential hypertension was conducted between 1996 and 2000. Antihypertensive drugs were withdrawn for at least 4 weeks; PAC and PRA were measured while subjects ...

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