As you are performing a KUB radiograph on a patient using AEC, you notice that your post-exposure readout is unusually high.A possible explanation for this high reading could be
A)the kVp was too high.
B)the backup mAs was set too low.
C)a detector was collimated out of the field of exposure.
D)the minimum response time was too long.

Question

Quizplus · Accepted Answer

When using Automatic Exposure Control (AEC) for radiographic imaging, if a detector is collimated out of the field of exposure, it will not receive enough radiation to terminate the exposure at the correct time. This results in the system continuing to expose until it reaches its maximum limit or backup time, leading to an unusually high exposure reading.

As You Are Performing a KUB Radiograph on a Patient