A 70-year-old male with advanced dementia requires a gastrostomy tube for nutritional support due to recurrent aspiration pneumonia. His son, who holds medical power of attorney, agrees to the procedure, but the patient repeatedly states, "I don't want any more tubes." What is the most appropriate next step for the medical team?

✓ Correct Answer: Option C

Even with advanced dementia, a patient's capacity to make specific medical decisions must be assessed. While the son holds POA, the patient's expressed wishes warrant a formal evaluation of his capacity for this decision. If incapacitated, the POA's decision should reflect the patient's best interest or previously stated wishes.