Radiologic Technologist Practice Exam

Which of the following does NOT reduce occupational dose during fluoroscopy?

1. Intermittent activation of views

2. Optimizing dose rates using AEC

3. Remote-controlled fluoroscopy

4. High-level-control fluoroscopy

The correct answer is: High-level-control fluoroscopy

High-level control fluoroscopy is typically used in specific situations requiring enhanced visibility, such as interventional procedures. While it allows for greater detail by increasing the dosage rate during certain imaging tasks, it inherently increases the occupational dose for the technologist and staff because the radiation exposure can be significantly higher compared to standard fluoroscopy settings. In contrast, intermittent activation of views, optimizing dose rates using Automatic Exposure Control (AEC), and remote-controlled fluoroscopy all contribute to minimizing exposure. Intermittent activation allows for only necessary imaging, thus reducing time under radiation. AEC optimizes the amount of radiation used based on patient size and density, ensuring just enough exposure to produce a quality image without excess. Remote-controlled fluoroscopy minimizes the need for personnel to remain near the radiation source, further decreasing occupational dose. So, while high-level-control fluoroscopy is beneficial for precision imaging in certain cases, it does not serve to reduce occupational radiation exposure.