What kind of change always results in the formation of new materials?

A radiograph of a transthoracic lateral projection reveals that it is difficult to visualize the proximal humerus due to the ribs and lung markings. The following exposure factors were used: 75 kV, 30 mAs, 40-inch (102 cm) SID, grid, suspended respiration. Which of the following changes will improve the quality of the image?

A patient enters the ER with a possible nasal bone fracture. The physician is concerned about a possible bony nasal septum deviation and fractured nasal bones. Which of the following routines would best diagnose these injuries?

A radiograph of an LPO projection of the lumbar spine reveals that the downside pedicle is projected too far posterior on the vertebral body. What specific positioning error is present on this radiograph?

Which statement concerning energy is FALSE?

A patient enters the ER with multiple injuries including a possible fracture of the left proximal humerus. Which positioning rotation should be performed to determine the extent of the humerus injury?

An ambulatory patient enters the ER with a possible injury to the right upper posterior ribs. Which of the following routines should be taken to demonstrate the involved area?

A study of a prosthetic hip demonstrates that the end of the prosthesis is cut off on the AP projection but the entire device is demonstrated on the lateral projection. What should the technologist do next?

A radiograph of an AP knee reveals rotation with almost total superimposition of the fibular head and the proximal tibia. What must the technologist do to correct this positioning error on the repeat exposure?

A patient comes to radiology for a double-contrast barium enema. The patient cannot lie on her side during the study. Which of the following projections could replace the lateral rectum projection?