A. Nurses are permitted to share a client’s information with family members only if the client grants permission. This aligns with the Health Insurance Portability and Accountability Act (HIPAA) and ensures the client’s right to privacy and confidentiality is upheld. B. While nurses play a critical role in client education, it is the provider’s responsibility to explain treatment options, including risks, benefits, and alternatives. Nurses can reinforce this information and answer questions but are not the primary party responsible for obtaining informed consent. C. Restraints must never be applied on a "PRN" (as needed) basis. They require a specific, time-limited order from a provider, and their use must be justified and continually reassessed. This ensures that client rights and safety are maintained. D. Participation in a research study requires informed consent from the client. Administering medications without consent is a violation of the client’s rights and ethical standards, even in research settings.