This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Renal physiology, Subject name: Physiology
GFR decreases with the following 
Select and explain. 
A. Hypotension, B. Hypoproteinemia, C. Diuretics, D. All of the above
A: Hypotension
Answer: A: Hypotension 
Explanation: In low BP ....there is decresed blood flow to kidney thus GFR is decreased. Ref: Ganong's review of medical physiology; 24th edition; page no: 678