While percussing a patient's chest wall, you detect an abnormal increase in resonance. Which of the following are possible causes of this finding?
1. Asthma
2. Pneumothorax
3. Emphysema
4. Pneumonia
a. 1, 2, and 3 only
b. 2 and 4 only
c. 1, 3, and 4 only
d. 1, 2, 3, and 4
ANS: A
Increased resonance can be detected in patients with hyperinflated lungs. Hyperinflation can re-sult from acute or chronic bronchial obstruction, such as asthma or emphysema.
Health Professions
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