Which of the following is a primary safety measure when handling radioactive materials?

Using shielded containers is a primary safety measure when handling radioactive materials because it prevents radiation exposure to personnel and the environment. Shielded containers are designed to effectively absorb and block radiation emitted from radioactive substances, thus mitigating the risks associated with handling these materials. The type of shielding material depends on the nature of the radioactive isotopes being dealt with—lead, for instance, is commonly used for gamma radiation, while plastic or glass may be sufficient for beta particles.

This measure is crucial in ensuring that radiation does not escape the container and pose a threat to the user or to the surrounding area. Effective use of shielded containers is essential for safe storage, transportation, and manipulation of radioactive substances in any medical setting, particularly in nuclear medicine, where patient safety and staff protection are priorities.

While wearing high-strength gloves and ensuring room temperature is regulated contribute to safety and operational efficiency, they do not directly address the protection from radiation exposure as effectively as using shielded containers. Minimizing patient intake pertains to reducing the risk of over-exposure for patients, rather than directly managing the safety of personnel handling radioactive materials.