Which of the following is NOT a type of patient shield?

• A. Flat contact shields
• B. Shadow shields
• C. Curved contact shields
• D. Breast shields

Answer: (C)

Curved contact shields are indeed a type of patient shield used in radiography, aimed at minimizing radiation exposure to specific areas of a patient's body. They are designed to contour to the anatomical structure, fitting closely to the skin while effectively blocking primary radiation.

Flat contact shields are used in a similar capacity, typically placed on the patient’s skin surface to protect areas such as the gonads. Shadow shields also serve a protective role, but they achieve this by being suspended over the area to be protected, without physical contact with the patient, utilizing the principle of projected shadowing to avoid exposing surrounding tissues.

Breast shields, specifically designed to protect the breast tissue during imaging, are another recognized category of patient shields. Each of these types of shields plays a crucial role in patient safety during radiographic procedures.

In contrast, the notion of a "curved contact shield" does not usually appear as a distinct category in clinical practice or standard terminologies related to patient shielding. Thus, while the other options represent commonly recognized types of shielding, the designation of a "curved contact shield" is not standard, which accounts for the choice made regarding which is not a recognized form of patient shield.