CAMRT Radiography Practice Exam

Which of the following is true regarding lead aprons?

1. They have no effect on attenuation

2. Higher thickness provides increased attenuation

3. They are not required in radiography

4. They only block scatter radiation

The correct answer is: Higher thickness provides increased attenuation

The assertion that higher thickness provides increased attenuation is accurate regarding lead aprons. Lead aprons are designed to protect patients and healthcare workers from the harmful effects of ionizing radiation during radiological procedures. The material, typically lead or a lead-equivalent compound, serves to absorb and scatter radiation. As the thickness of the material increases, so does its ability to attenuate (or reduce the intensity of) the radiation. Therefore, thicker lead aprons are indeed more effective at blocking radiation, which is essential for ensuring safety in radiographic environments. The discussion around lead aprons often touches on their importance in minimizing exposure to both primary and scatter radiation, but thicker aprons significantly enhance the protective quality, which makes the correct answer centered around the relationship between thickness and attenuation.