This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Medicine
Which of the following is not a feature of acute renal failure? 
Select and explain. 
A. Hyperphosphatemia, B. Hypocalcemia, C. Hypokalemia, D. Metabolic acidosis
C: Hypokalemia
Answer: C: Hypokalemia 
Explanation: Complications of AKI Complications associated with AKI are, protein, and depend on the severity of AKI and other associated conditions. Mild to moderate AKI may be entirely asymptomatic, paicularly early in the course. Include Uremia, Hypervolemia/Hypovolemia, Hyponatremia, Hyperkalemia, Metabolic acidosis, Hyperphosphatemia, hypocalcemia Bleeding, infections, cardiac complications and malnutrition are other complications. Ref: Harrison 19e 1809