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
Clinical feature of CRF - 
Select and explain. 
A. Broad cast in urine, B. Hypomagnesemia, C. Hypokalemia, D. Impotence
A: Broad cast in urine
Answer: A: Broad cast in urine 
Explanation: In chronic renal diseases, Degenerated cellular casts called waxy casts or broad casts(arising in the dilated tubules that have undergone compensatory hyperophy in response to reduced renal mass) may be seen in urine. Ref:Harrison 20th edition pg no. 294