Final answer:
The nurse should intervene if the client with a radioactive implant disposes of contaminated items in the regular trash, as this poses a risk of unnecessary radiation exposure and violates safety protocols for radioactive waste disposal.
Step-by-step explanation:
The nurse supervises care for a client with a radioactive implant. The nurse should intervene when the observation that the client disposes of contaminated items in the regular trash is made. This is because radioactive materials can be hazardous and require special disposal procedures to protect others from radiation exposure. Proper disposal typically involves placing such items in designated containers to prevent the spread of radioactivity. Radioactive waste must be handled according to strict safety protocols to ensure it does not contaminate the environment or expose individuals to unnecessary risks. Using lead containers, also known as pigs, helps to block radiation and is part of the required safety practices in healthcare settings.