<prompt> A young hypeensive patient has serum K 2.8 meqL and aldosterone level with increased plasma rennin activity. The likely cause isare -Renal aery stenosisEctopic ACTH syndromeDiuretic therapyConns syndrome  <response>: Conn;s syndrome involves increased aldosterone , hypeension , hypokalemia, low plasma renin activity Harrison 17 pg 2260 