Berg, Jeannette Zinggeler2010-07-222010-07-222010-07-22http://purl.umn.edu/92281The information provided in this handout does not necessarily reflect the views of the University of Minnesota Medical School physicians and faculty. These materials are provided for informational purposes only and are in no way intended to take the place of the advice and recommendations of your personal health care provider. You use the information provided in these handouts at your own risk.An uncommon but treatable cause of high blood pressure is primary aldosteronism. The plasma aldosterone to renin ratio may be used to screen for primary aldosteronism in patients who have a higher risk of this condition. Since patients undergoing this blood test are often asked to stop or change medications for a period of time before the test they may have questions about why the test is being done. This pamphlet was prepared to provide patients with basic information about the purpose of the aldosterone:renin screening test.en-UShigh blood pressureprimary aldosteronismaldosteronereninOther