CAMRT Radiography Practice Exam

In a lateral projection of the hand, what is important to maintain for an accurate representation?

1. Parallel alignment of the metacarpals

2. Extension of the phalanges

3. Flexion of the wrist

4. Closed fist positioning

The correct answer is: Parallel alignment of the metacarpals

In a lateral projection of the hand, it is essential to maintain parallel alignment of the metacarpals to achieve an accurate representation of the anatomy. This alignment ensures that there is minimal distortion of the structural relationships between the bones, allowing for clear visualization of the individual metacarpals as well as the overall contours of the hand. Proper parallel alignment contributes to the uniformity of the image and aids in the assessment of fractures or any potential pathologies. While factors like the extension of the phalanges, flexion of the wrist, and the positioning of the hand can influence the quality of the image, they do not hold the same critical importance as the alignment of the metacarpals in a lateral view. A well-formed lateral projection emphasizes the need for accurate positioning, which ultimately enhances diagnostic accuracy.