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Difficulty: HardAdvance Directives and Surrogate Decision Making

A 66-year-old man with metastatic prostate cancer is admitted to the intensive care unit with severe lobar pneumonia and sepsis. His condition rapidly deteriorates. His blood pressure is 75/40 mm Hg, and his oxygen saturation is 82% on a 15-liter non-rebreather mask. He is profoundly lethargic, oriented only to person, and lacks decision-making capacity. The electronic medical record contains a legally executed advance directive from four years ago stating he refuses mechanical ventilation, cardiopulmonary resuscitation, and vasopressors. This document also designates his brother as his durable power of attorney for healthcare. However, the record also contains a clinic note from his oncologist dated five days ago stating: 'The patient is highly anticipating his daughter's wedding next month. He explicitly stated he wishes to temporarily revoke his previous living will and desires all life-sustaining measures, including intubation, if needed to survive until the wedding.' The patient's brother is present and insists that the four-year-old advance directive be strictly honored, demanding comfort measures only. The patient's daughter, who holds a durable power of attorney for financial affairs, is also present and demands that the patient be intubated to keep him alive for her wedding. Which of the following is the most appropriate next step in management?

  1. Initiate mechanical ventilation and vasopressor therapyAnswer
  2. B
    Provide comfort-focused care as requested by the healthcare proxy
  3. C
    Obtain informed consent for intubation from the daughter based on her durable power of attorney
  4. D
    Postpone endotracheal intubation pending an emergent hospital ethics consultation
  5. E
    Suspend life-sustaining interventions until a court-appointed guardian is established

Answer

Initiate mechanical ventilation and vasopressor therapy
The correct action is to initiate mechanical ventilation and vasopressor therapy. In all US jurisdictions, a patient with decision-making capacity has the right to revoke or modify an advance directive at any time, and this can be done either in writing or verbally. The oncologist's note from five days prior clearly documents the patient's competent, verbal modification of his goals of care to include life-sustaining measures. When a patient's recent wishes are known, they legally supersede older written documents. Furthermore, a designated healthcare proxy (the brother) operates under the standard of substituted judgment—meaning he is legally and ethically bound to make decisions based on the patient's known wishes. Because the patient recently expressed a desire for aggressive care, the brother does not have the authority to override this and demand comfort measures. The physician must uphold the patient's own most recent directive.

Step-by-Step Solution

1
Assess the patient's current clinical status and decision-making capacity.
The patient is in distributive shock with impending respiratory failure and lacks decision-making capacity due to profound lethargy.
Determines the need to rely on advance directives or surrogate decision-makers.
2
Evaluate the validity and hierarchy of the patient's advance directives.
The patient has a 4-year-old written directive refusing life support, but a documented verbal statement from 5 days ago requesting full life-sustaining measures.
A competent patient can revoke or modify an advance directive verbally at any time. The most recent expression of wishes takes legal precedence.
3
Analyze the authority of the present family members.
The brother is the healthcare proxy but is attempting to override the patient's recent wishes. The daughter has a financial POA, which provides no medical authority.
Healthcare proxies are bound by the principle of substituted judgment and cannot contradict the patient's known, recent wishes.
4
Determine the next best medical step based on legal and ethical principles.
Proceed with intubation and vasopressors.
The physician's duty is to honor the patient's most recent competent directive, which is to receive aggressive care.

Key Concept

A competent patient's verbal revocation or modification of an advance directive legally supersedes both prior written directives and the authority of a designated healthcare proxy.
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Topics

Advance Directives and Surrogate Decision Making

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