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Hyper-resonance (generally described upon percussion of the chest) is typically seen in Pneumothorax, where an accumulation of air in the pleural space causes compression / collapse of the lung on the affected side. Note that hyper-resonance is a late sign, and is seen infrequently.

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Q: What causes hyperresonance in a trauma patient?
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Related questions

What causes Hyperresonance over the left chest?

Hyperresonance over the left chest can be caused by conditions such as a large pneumothorax (air trapped in the chest cavity), emphysema (damaged air sacs in the lungs), or a bronchial obstruction. It is important to seek medical evaluation for proper diagnosis and treatment.

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