Question

A radiograph of a lateral cranium reveals that the mentum was cut off from the bottom of the radiograph. A 24 ´ 30-cm (10 ´ 12-inch) IR was used, and it was placed crosswise. What must be altered if a repeat exposure is performed?1. Increase the extension of the skull2. Increase the flexion of the skull3. Increase the CR angulation4. None of the above positioning was correct

Answer 1

The correct answer is

4. None of the above; centering and image receptor placement were correct.

Step-by-step explanation:

The best positioning line is perpendicular to the IR for a PA projection of the skull is 10 x 12 inches (24 x 30 cm) lengthwise.