CAMRT Radiography Practice Exam

What criteria apply to the radiograph for evaluating the oblique sternum?

1. The left sternoclavicular joint should be adjacent to the spinal column

2. The entire sternum should be adjacent to the spine and adjacent to the heart shadow

3. The entire sternum should lie over the heart shadow and be adjacent to the spine

4. The second rib should lie directly over the manubrium of the sternum

The correct answer is: The entire sternum should lie over the heart shadow and be adjacent to the spine

The criteria for evaluating the oblique sternum in a radiograph emphasizes proper positioning to ensure anatomical accuracy and adequate visualization. When assessing the oblique view, it is crucial that the entire sternum lies over the heart shadow and is adjacent to the spine. This orientation is important because it allows for a clear representation of the sternum's structure while maintaining separation from surrounding anatomical features, such as the heart and the thoracic spine. When the sternum is correctly positioned over the heart shadow, it minimizes the likelihood of superimposition from adjacent structures, thus enhancing the diagnostic quality of the image. This positioning also helps in assessing any potential pathologies affecting the sternum, such as fractures or malignancies. The emphasis on the sternum being adjacent to the spine further underscores the importance of minimizing rotation and ensuring proper alignment, which are key considerations in obtaining a high-quality radiograph. This understanding is critical for radiographers to ensure they achieve the appropriate angulation and positioning for optimal visualization in a clinical context.