Which is not a feature of primary hyperaldosteronism:
Hypokalemia
Hypeension
Hypernatremia
Increased rennin level
Answer is D (Increased Renin levels): Primary Aldosteronism (Conn's syndrome) is characteristically associated with low resin levels and not increased renin levels. Hypokalemia, Hypeension and Hypernatremia are characteristic features of Conn's syndrome.