Radiologic Technologist Practice Exam

What is the recommended standard for maintaining the lead equivalence of protective apparel?

1. 1.0 mm

2. 0.5 mm

3. 2.0 mm

4. 0.25 mm

The correct answer is: 1.0 mm

The recommended standard for maintaining the lead equivalence of protective apparel is 0.5 mm. This standard is based on guidelines from health and safety organizations that aim to protect radiologic technologists and patients from unnecessary exposure to radiation. The rationale for using 0.5 mm lead equivalence is that it provides adequate protection against scatter radiation commonly encountered during diagnostic imaging procedures, including X-rays and fluoroscopy. The choice of thicker lead equivalence, such as 1.0 mm, may be unnecessarily heavy and can reduce the comfort and mobility of the individual wearing the protective gear. While thicker lead may provide even greater protection, it is not typically required in standard practice for routine radiological procedures. The goal is to achieve a balance between adequate protection and wearability. Adhering to these standards ensures that safety measures are effective while also allowing for ease of use in clinical settings. Therefore, 0.5 mm lead equivalence in protective apparel is considered optimal for achieving the necessary protection against radiation exposure in most diagnostic imaging scenarios.