This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chronic Kidney Disease & Diabetic Nephropathy, Subject name: Medicine
The term end-stage renal disease (ESRD) is considered appropriate when GFR is: 
Select and explain. 
A. 50% of normal, B. 25% of normal, C. 10-25% of normal, D. 5-10% of normal
D: 5-10% of normal
Answer: D: 5-10% of normal 
Explanation: CKD Stage GFR Level (mL/min/1.73m2) G1 > 90 G2 60-89 HTN develops in this stage G3 30-59 Anemia develops in this stage G4 15-29 Acidosis,Hyperkalemia G5 < 15 (End stage renal disease) Uraemia develops Albuminuria A1 3-30 mg/g A2 30-300 A3 > 300