CAMRT Radiography Practice Exam

What two rib images should be performed for an injury to the right posterior ribs?

1. AP projection and LAO position

2. PA projection and RPO position

3. AP projection and RPO position

4. Lateral projection and LPO position

The correct answer is: AP projection and RPO position

When imaging for an injury to the right posterior ribs, it is important to utilize projections that will best visualize the affected area while also providing appropriate orientation in relation to the anatomy of interest. The AP (anterior-posterior) projection is beneficial as it provides a straightforward view of the ribs, allowing for a clear image of the right posterior rib cage against the background of the heart and lungs. This view will capture the anterior aspect of the ribs as well as the posterior injured area, which is crucial for assessing rib fractures or other injuries. The RPO (right posterior oblique) position complements the AP view by further isolating the right posterior rib region. In this position, the right ribs are projected and can be examined with less superimposition from adjacent structures, providing a more detailed view of any potential injuries. Together, these two projections create a comprehensive imaging assessment of the right posterior ribs, allowing radiologists and clinicians to make a more accurate diagnosis related to the injury. Other combinations of projections might not adequately visualize the posterior ribs or might create unwanted superimposition that can obscure critical details in the imaging results.