CAMRT Radiography Practice Exam 2025 – Comprehensive Test Prep

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What other image should an MRT take of a pneumothorax after completing an upright inspiration chest x-ray?

Expiratory chest x-ray

In the case of a pneumothorax, taking an expiratory chest x-ray provides critical diagnostic information. The reason for this is that during expiration, there is a decrease in lung volume, which can help to accentuate the presence of air in the pleural space. This contrast allows for better visualization of the pneumothorax, particularly in smaller cases that might not be readily apparent on the initial upright inspiration x-ray.

Evaluating the lungs during the expiratory phase can also help determine whether the pneumothorax is stable or if there are any changes in size that might suggest a worsening condition. This diagnostic approach is essential in emergency situations and contributes to effective treatment planning.

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Left lateral decubitus

Oblique view

Supine chest x-ray

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