Which of the following are typical causes of pulmonary edema as seen on the chest radiograph? 1. Left heart failure 2. Renal failure 3. Cor pulmonale 4. Fluid overload
a. 2 only
b. 1 and 3 only
c. 1, 2, and 4 only
d. 1, 2, 3, and 4
ANS: C
Edema from vascular congestion can be caused by failure of the left heart (cardiogenic pulmo-nary edema), renal failure, or fluid overload.
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