American Society of Radiologic Technologist (ASRT) Practice Exam

Question: 1 / 400

Which of the following is NOT a technique designed to reduce occupational dose during fluoroscopy?

Intermittent activation of views.

Optimizing dose rates using AEC.

Remote-controlled fluoroscopy.

High-level-control fluoroscopy.

High-level-control fluoroscopy refers to a technique that often allows for the delivery of higher doses of radiation for specific procedures that may require enhanced visualization, such as in certain interventional radiology scenarios. While high-level-control fluoroscopy can be beneficial in select clinical situations, it can lead to increased occupational exposure if not carefully managed.

The other listed techniques—intermittent activation of views, optimizing dose rates using automatic exposure control (AEC), and remote-controlled fluoroscopy—are all strategies that help minimize exposure. Intermittent activation allows for reduced continuous radiation, optimizing dose rates with AEC helps ensure that the radiation used is on an as-needed basis based on the patient's size and the specific imaging requirements, and remote-controlled fluoroscopy increases distance between the operator and the radiation source, further decreasing occupational exposure. Therefore, high-level-control fluoroscopy stands out as a method that does not inherently reduce occupational dose, making it the correct answer to the question.

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