A 72-year-old woman with end-stage renal disease requires urgent hemodialysis for hyperkalemia and fluid overload. She is alert, oriented x3, and understands the risks and benefits of dialysis but states, "I've lived a full life, and I'm ready to let nature take its course." Her daughter insists on dialysis. What is the most appropriate next step?
✓ Correct Answer: Option C
An adult patient with decision-making capacity has the right to refuse medical treatment, even if it is life-saving. Her stated understanding and orientation confirm her capacity, making her decision valid.