Final answer:
In a medical unit where patients are treated for Hepatitis B, the nurse should emphasize the ethical principle of nonmaleficence to the staff, requiring actions that prevent harm, such as adhering to infection control measures.
Step-by-step explanation:
The nurse on a medical unit with several patients being treated for Hepatitis B should remind the staff to use the principle of nonmaleficence. This ethical principle requires that health care providers act in ways that do not cause harm to others. In this context, it means that all medical personnel should take appropriate precautions to prevent the transmission of Hepatitis B, which includes following strict infection control protocols such as using gloves, proper disposal of sharps, and hand hygiene. Since Hepatitis B is a highly contagious liver infection, taking these measures is essential to protect both the patients and the health care workers.