Question

consider a technologist performing a lumbar spine series using an automatic exposure control (aec) system. after acquiring the lateral radiograph, the technologist angles the beam to 5° caudal and collimates to the area of the l5 - s1 joint. how should the technologist change the technical parameters to ensure the same receptor exposure as the lateral view?

increase kilovoltage peak (kvp)

increase milliamperage (ma)

decrease the source - to - image distance (sid)

no change is required

Explanation:

When using an automatic exposure control (AEC) system, it is designed to adjust the exposure parameters to maintain a consistent receptor exposure. Angling the beam to 5° caudal and collimating to a specific area does not affect the AEC's ability to maintain the same receptor exposure as long as the AEC is functioning properly. So no change in technical parameters is required.

Answer:

No change is required