<prompt> A 50-year old male presents with severe refractory hypeension, weakness, muscle cramps and hypokalemia, the most likely diagnosis is -HypoaldosteronismHyperaldosteronismCushings syndromePheochromocytoma  <response>: hypeension due to increased sodium reabsorption and extracellular volume expansion and potassium depletion causes multiple weakness, hypokalemia Harrison 17 pg 2260 