A satisfactory AP lumbar spine radiograph is made using 200 mA,0.25 sec,78 kVp,and 40-inch SID. Which of the following technique changes will produce a radiograph of similar density while providing less contrast and less exposure to the patient?

Question

Quizplus · Accepted Answer

Increasing the kVp while decreasing the exposure time (and maintaining the mA and SID) will produce a radiograph of similar density but with less contrast and less patient exposure. Higher kVp penetrates more, reducing contrast, and the reduced time lowers the dose.

A Satisfactory AP Lumbar Spine Radiograph Is Made Using 200