Radiology Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

The diameter of the x-ray beam may not exceed?

1 inch

2 inches

2 3/4 inches

The correct answer regarding the maximum diameter of the x-ray beam is indeed 2 3/4 inches. This limit is typically set by regulatory guidelines that ensure the safety and effectiveness of x-ray procedures. The restriction on beam size plays a crucial role in minimizing patient exposure to radiation, as well as improving image quality by reducing scatter radiation.

Using a beam that is too wide can increase the volume of tissue irradiated, potentially leading to unnecessary radiation dose to the patient. By keeping the beam diameter within this specified limit, practitioners can enhance patient safety and optimize the effectiveness of imaging by focusing on the area of interest without unnecessary spread.

There are specific standards and regulations that govern radiographic practices, including beam limitations, to ensure consistent safety protocols across medical facilities.

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3 inches

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