Which of the following are common radiographic findings seen in patients with volume loss due to atelectasis?
1. Elevation of the hemidiaphragm
2. Narrowing of the space between the ribs
3. Increase in the retrosternal airspace
4. Shift of the mediastinum
a. 1 only
b. 3 only
c. 1, 2, and 4 only
d. 3 and 4 only
ANS: C
This can be seen by elevation of the diaphragm on the side of the atelectasis, a shift of the medi-astinum toward the atelectasis, and poor expansion of the chest causing narrowing of the space between the ribs. If the collapsed segment of the lung is in the upper lobe, the hilum will be dis-placed upward and the minor fissure on the right will be displaced upward.
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