Question

The regulatory filtration requirement for fluoroscopy may be "assumed" to have been met if the HVL is:

1. less than 2.5 mm Al
2. not less than 3.0 mm Al
3. not less than 2.5 mm Al

Answer 1

The regulatory filtration requirement for fluoroscopy is assumed to be met if the Half Value Layer (HVL) is not less than 2.5 mm Al.

Step-by-step explanation:

The question relates to the regulatory requirements for filtration in fluoroscopy equipment and is concerned with the Half Value Layer (HVL) which is used to describe the amount of shielding or filtration that reduces the intensity of an X-ray beam by half. The HVL is measured in millimeters of aluminum (mm Al) because aluminum is the standard material used for quantifying X-ray filtration.

The correct answer to your question is: the regulatory filtration requirement for fluoroscopy may be "assumed" to have been met if the HVL is not less than 2.5 mm Al. This means that the minimum acceptable HVL for fluoroscopy to ensure adequate patient safety and compliance with regulatory standards is 2.5 mm Al.