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    The substituted judgment standard for medical treatment decisions is flawed. It often fails to reflect patient values or lacks a clear answer, necessitating a new approach for surrogate decision-making.

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    Area of Science:

    • Medical Ethics
    • Bioethics
    • Clinical Decision-Making

    Background:

    • Patients with diminished decisional capacity often require surrogate decision-makers.
    • The substituted judgment standard is the prevailing ethical framework for surrogate decision-making.
    • Advance directives and clear communication of patient wishes are frequently absent.

    Purpose of the Study:

    • To critically evaluate the substituted judgment standard in surrogate decision-making.
    • To identify the limitations and ethical challenges of the "what would the patient choose?" question.
    • To advocate for an alternative framework for making treatment decisions for incapacitated patients.

    Main Methods:

    • Ethical analysis of the substituted judgment standard.
    • Examination of the moral salience and determinacy of patient choice.
    • Conceptual critique of the "what would the patient choose?" question.

    Main Results:

    • The substituted judgment standard's application can be ethically problematic.
    • Determinate answers to "what would the patient choose?" may not align with underlying patient values.
    • Often, there is no determinate answer to what an incapacitated patient would choose.

    Conclusions:

    • The "what would the patient choose?" question is an inadequate basis for surrogate decision-making.
    • The limitations of substituted judgment highlight the need for a revised ethical approach.
    • A new decision-making standard is required to better serve incapacitated patients' best interests.