Which of the following findings on a chest radiograph are consistent with pulmonary embolism? 1. Diffuse hyperinflation 2. Elevation of the diaphragm 3. Enlargement of the heart shadow 4. Pleural effusion
a. 2, 3, and 4 only
b. 1 and 2 only
c. 3 and 4 only
d. 1, 2, and 3 only
ANS: A
The chest radiograph is abnormal in more than 80% of cases. Some of the abnormalities include enlargement of the right descending pulmonary artery (66%), elevation of the diaphragm (61%), enlargement of the heart shadow (55%), and a small pleural effusion (50%).
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