Physical assessment indicating the presence of a tension pneumothorax includes which of the following?
1. Unequal chest excursion
2. Hyperresonance upon chest percussion
3. Absent breath sounds
4. Loud breath sounds
a. 1 and 3 only
b. 1, 2, and 3 only
c. 3 and 4 only
d. 2, 3, and 4 only
ANS: B
Pneumothorax is identified by observation of a decrease in chest movement, hyperresonance on percussion, and decreased or absent breath sounds over the affected side.
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