This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Pulmonary edema associated with normal PCWP is observed. Which of these is not a cause: 
Select and explain. 
A. High altitude, B. Cocaine overdose, C. Post cardiopulmonary bypass, D. Bilateral renal aery stenosis
D: Bilateral renal aery stenosis
Answer: D: Bilateral renal aery stenosis 
Explanation: Answer is D (Bilateral Renal Aery Stenosis) Bilateral Renal Aery Stenosis is not a cause for pulmonary edema with normal PCWP High Altitude, narcotic overdose (Cocaine overdose),and cardiopulmonary bypass are all know causes for pulmonary edema with normal PCWP.