NBRC Clinical Simulation Exam Practice Test 2025 – Comprehensive Study Resource

Question: 1 / 400

What diagnostic percussion note might indicate a pneumothorax?

Dull note

Normal resonance

Hyper resonant/tympanic note

A hyper-resonant or tympanic note during percussion is indicative of a pneumothorax. This occurs because a pneumothorax involves the presence of air in the pleural space, which disrupts the normal lung structure and causes increased resonance when tapping on the chest. The excess air leads to a sound that is more pronounced and resonant compared to the normal sounds produced during percussion over healthy lung tissue, which typically produce a more dull or resonant note.

This hyper-resonance can help healthcare professionals differentiate pneumothorax from other conditions that may present with similar symptoms but would yield different percussion notes. Understanding this physical exam finding is crucial for the timely identification and management of pneumothorax in clinical practice.

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Flat note

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