CEA Nursing Practice Exam

How does performing percussion of the thorax assist during a physical examination?

1. To assess for any pain or discomfort prior to palpitation of the chest wall.

2. To identify if underlying tissue are air-filled, fluid-filled, or consolidated.

3. To assist with the confirmation of cardiac origin of angina.

4. To assess for deep-seated lesion and tumors.

The correct answer is: To identify if underlying tissue are air-filled, fluid-filled, or consolidated.

Performing percussion of the thorax is an essential technique in physical examination that helps the healthcare provider assess the underlying structures of the lungs and thoracic cavity. This method generates sound waves that can provide valuable information about the contents beneath the thoracic wall. When percussion is performed, the resonance of the sound will differ depending on whether the underlying tissues are air-filled (like healthy lung tissue), fluid-filled (such as in pneumonia or pleural effusion), or solid/consolidated (like in lung tumors or in cases of significant inflammation). In the context of the question, the ability to distinguish between these states is crucial, as it helps to guide further diagnostics and treatment plans. For example, a dull sound may suggest fluid or solid matter in the lungs, while a hyper-resonant sound could indicate air trapping, as seen in conditions like emphysema. This information supports the overall clinical assessment and decision-making process regarding the patient's respiratory health.