This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
Which of the following type of renal tubular acidosis (A) is associated with hyperkalemia? 
Select and explain. 
A. A type IV, B. A type I & II, C. A type II, D. A type IV
D: A type IV
Answer: D: A type IV 
Explanation: -Type IV A(hyporeninemic hypoaldosteronism) is the most common A- It may occur in type 1 or 2 DM- Associated with moderate renal dysfunction and characterised by hyperkalemiaRef: Harrison's 18/e p2364