Which of the following findings on a radiologic report would indicate the presence of a tension pneumothorax?
a. Bilateral inversion of diaphragm, long narrow heart, and flattened ribs
b. Blunting of costophrenic angles, marked interstitial infiltrates, and apical free air
c. Contralateral mediastinal shift, diaphrag-matic depression, and flattening of ribs
d. Ipsilateral mediastinal shift, sail-shape noted right hemithorax, and marked inter-stitial infiltrates right sided
ANS: C
Tension pneumothorax occurs when air in the pleural space exceeds atmospheric pressure. The radiographic appearance includes mediastinal shift to the contralateral side, diaphragmatic de-pression, and expansion of the ribs.
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