護理師準備協助病人進行腰椎穿刺。下列哪項護理措施對病人安全至關重要？
A nurse is preparing a client for a lumbar puncture. Which nursing action is essential for patient safety?
- AVerify that the informed consent has been signed✓ 正解確認知情同意書已簽署
- BInstruct the client to remain in a supine position post-procedure指示病人在術後保持仰臥姿勢
- CEnsure the client remains NPO for 12 hours確保病人禁食 12 小時
- DAdminister prophylactic antibiotics給予預防性抗生素
腰椎穿刺（Lumbar puncture）屬於侵入性檢查，涉及病人的自主權與法律責任。在進行任何侵入性處置前，護理師的首要安全任務是確認知情同意書（Informed consent）已簽署。這是為了確保病人知悉風險，並符合醫療法律要求。至於禁食或術後體位，則視具體醫院政策而定，非第一優先的安全事項。
Lumbar puncture is an invasive procedure that involves issues of patient autonomy and legal responsibility. Before performing any invasive procedure, the nurse's primary safety task is to verify that informed consent has been signed. This ensures that the client is aware of the risks and meets medical-legal requirements. NPO status and postprocedure positioning are determined by specific institutional policy and are not first-priority safety concerns.
美國對於 Informed Consent 的確認極為嚴格，若護理師在未確認簽署的情況下將病人送往檢查室，會被視為嚴重的安全違規。