Which of the following is an example of lead shielding used in radiography?

• A. Gonadal and thyroid shields
• B. Styrofoam shielding
• C. Thin lead vinyl shields
• D. Lead-free shields

Answer: (A)

Shielding uses lead’s high density and atomic number to absorb scattered X-rays and reduce dose to radiosensitive tissues. Gonadal and thyroid shields are classic examples of this protection in radiography, placed over the reproductive organs and thyroid to minimize unnecessary exposure, especially in young patients or during procedures where those areas aren’t of diagnostic interest. They’re typically made of lead or lead-equivalent material and designed to preserve image quality while limiting dose to these sensitive tissues. Styrofoam shielding doesn’t attenuate X-rays effectively, and lead-free shields offer no protection, so they aren’t examples of lead shielding. Thin lead vinyl shields exist, but the most recognizable and routinely used lead shielding in practice is the gonadal and thyroid shields.