"Pulmonary edema is not a hydrostatic phenomenon!"...that's what he said to justify the exam question. With one sentence, what little hope of respect for this man's knowledge vanished. He said it so dogmatically, so emphatically, with such expertise. Clearly, he doesn't have a clue what he's talking about.
Cardiac pulmonary edema is caused by elevated pulmonary capillary hydrostatic pressure leading to transudation of fluid into the pulmonary interstitium and alveoli. Increased left atrial pressure increases pulmonary venous pressure and pressure in the lung microvasculature, resulting in pulmonary edema.
At some level, if you know you don't know that you don't know, you'll never know.
Let us not look back in anger or forward in fear, but around in awareness. 
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