Question

a technologist is performing an anteroposterior (ap) abdomen radiograph on a geriatric patient using an automatic exposure control (aec) system. which of the following changes will be noted if the technologist decreases the kilovoltage peak (kvp)? decreased patient dose increased receptor exposure decreased contrast increased exposure time

Explanation:

In an AEC system, when the kilovoltage peak (kVp) is decreased, the automatic exposure control will increase the exposure time to maintain the desired receptor exposure. Decreasing kVp does not necessarily decrease patient dose as the AEC will adjust other parameters. It will not increase receptor exposure; rather, it tries to keep it constant by changing exposure time. Decreasing kVp actually increases contrast.

Answer:

Increased exposure time