護理師正與病人討論預立醫療決定書。下列哪項護理師的說明是正確的？
A nurse is collaborating with a client regarding an advance directive. Which of the following statements by the nurse is accurate?
- AThe client must have a lawyer present to sign the document病人必須有律師在場才能簽署文件
- BThe document becomes effective only when the client is deemed incapacitated✓ 正解該文件僅在病人被判定為無行為能力時才生效
- CAn advance directive is permanent and cannot be changed once signed預立醫療指示一旦簽署即為永久有效且不得更改
- DA physician must notarize the document for it to be legally binding必須由醫師對文件進行公證使其具有法律效力
預立醫療決定書（Advance directive）是保障病人醫療自主權的重要法律文件。其核心概念在於當病人喪失決策能力時，能夠依據其意願執行醫療照護。此文件僅在病人無法表達意見時生效，且病人隨時有權撤銷或修改。臨床思路應強調尊重病人的自主權與尊嚴，並確保文件符合法律效力（如見證人制度），而非過度神祕化其程序。
An advance directive is an important legal document that protects a client's right to medical autonomy. Its core principle is that when the client loses decision-making capacity, care can be delivered in accordance with the client's previously expressed wishes. The document becomes effective only when the client is unable to express decisions and may be revoked or modified by the client at any time. Clinical reasoning should emphasize respect for autonomy and dignity, and the document must meet legal requirements (such as witness signatures), without unnecessary mystification of the process.
在美國，這類文件通常被稱為 Living Will 或 Durable Power of Attorney for Healthcare。醫院會詢問每位入院病人是否已有此文件，若無，護理師有責任提供相關教育。