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Difficulty: MediumAdvance Directives and End-of-Life Care

A 75-year-old man with early-stage Alzheimer disease is evaluated in the outpatient vascular surgery clinic for a recently discovered 6.5-cm abdominal aortic aneurysm. The surgeon explains that without repair, there is a high risk of fatal rupture. The patient correctly restates his diagnosis, articulates the risks of both surgical intervention and non-operative management, and states, "I have lived a full life and I do not want to spend my remaining days recovering from a major operation. I decline the surgery." Later that day, the patient's son, who is the legally designated healthcare proxy, contacts the clinic. The son demands that the surgery be scheduled immediately, arguing that his father's dementia diagnosis renders him incapable of making this life-or-death decision. The physician has already conducted a structured capacity assessment and determined that the patient fully possesses decision-making capacity for this specific medical decision. Which of the following is the most appropriate next step in management?

  1. Honor the patient's refusal and cancel the surgical interventionAnswer
  2. B
    Proceed with the surgery because the designated healthcare proxy has provided consent
  3. C
    Obtain a psychiatric consultation to definitively determine the patient's legal competency
  4. D
    Consult the hospital ethics committee to mediate the disagreement between the patient and his son
  5. E
    Ask the patient's spouse to make the final decision regarding the surgery

Answer

Honor the patient's refusal and cancel the surgical intervention
A legally designated healthcare proxy is only activated when a patient loses decision-making capacity. A diagnosis of early-stage dementia does not automatically equate to a lack of capacity. Because the treating physician has explicitly determined that this patient understands his diagnosis, the proposed treatment, the alternatives, and the consequences of refusing care, the patient retains the right to refuse the intervention. The ethical principle of autonomy dictates that the capacitated patient's wishes override the demands of family members or designated surrogates.

Step-by-Step Solution

1
Assess the patient's current ability to understand their diagnosis, treatment options, and the consequences of their decision.
The physician determines the patient fully possesses decision-making capacity.
Capacity is the primary threshold for autonomy. A diagnosis of dementia does not automatically preclude capacity.
2
Determine the status of the designated healthcare proxy.
The proxy's authority is currently dormant.
A healthcare proxy is only activated when the primary patient lacks decision-making capacity.
3
Formulate a management plan based on legal and ethical principles.
The patient's refusal of surgery is respected, overriding the son's demands.
The ethical principle of autonomy requires honoring the capacitated patient's informed refusal of care.

Key Concept

Decision-making capacity and activation of a healthcare proxy
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Topics

Advance Directives and End-of-Life Care

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