Choice A reason: The nurse serves as a client advocate and must ensure that the interprofessional team is aware of the client's decision to refuse treatment. Autonomy allows competent clients to refuse care at any time. Communicating this to the provider facilitates a discussion regarding prognosis, palliative options, or hospice care transitions. Choice B reason: Asking "why" is often considered a non-therapeutic communication technique as it can make the client feel defensive or as if they must justify their feelings. While understanding the client's motivation is helpful, the priority is to respect their autonomy and notify the primary medical provider immediately. Choice C reason: Advance directives are legal documents that outline a client's wishes, but they do not need to be updated before a client can exercise their right to refuse current treatment. Verbalizing a desire to stop treatment is a valid expression of autonomy that the nurse must act upon promptly. Choice D reason: A social worker can provide emotional support and assist with end-of-life resources, but this is not the immediate priority action. The nurse must first ensure the medical team is informed so that the plan of care can be legally and ethically adjusted to match the client's goals.