Which items are required if the operator must remain in the room during patient CT scanning?

The correct choice emphasizes the importance of safety and monitoring when an operator remains in the room during patient CT scanning. In this scenario, wearing protective apparel is essential to shield the operator from unnecessary radiation exposure, and having a personnel dosimeter is crucial for monitoring the operator's radiation dose.

Protective apparel, such as lead aprons, provides a barrier to reduce radiation exposure, while the personnel dosimeter measures the amount of radiation the operator is receiving. This allows for continuous monitoring and ensures that the operator is kept within safe exposure limits as established by radiation safety standards.

While a gonad shield is useful for protecting sensitive areas during radiographic procedures, it is not specifically required in all scenarios where the operator is present. The focus for the operator's safety is primarily on protective apparel and the dosimeter. Understanding the rationale behind these requirements is key for maintaining a safe environment for both the patient and the operator.