This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
True about conn&;s syndrome- 
Select and explain. 
A. Increased K+, B. Decreased K+, C. Proximal myopathy, D. Ted plasma renin activity
B: Decreased K+
Answer: B: Decreased K+ 
Explanation: Ans is option 2 and 3 Decrease K+ and proximal myopathy In Conn&;s disease Proximal myopathy occurs due to hypokalemia. Hypokalemia causes alteration of electrical excitability of nerve and muscle fibre membranes, which prevents transmission of normal action potential, leading to severe muscle weakness. Ref Harrison 17/e p 2260,2261,2253