病人正透過中心靜脈導管接受全靜脈營養（TPN）。下列哪項預防併發症的措施最重要？
A client is receiving total parenteral nutrition (TPN) via a central venous catheter. Which intervention is the highest priority to prevent complications?
- AMonitor serum glucose levels every 6 hours每6小時監測血清葡萄糖濃度
- BChange the TPN tubing every 24 hours每24小時更換TPN輸液管路
- CMaintain a strict sterile technique during dressing changes✓ 正解在換藥期間維持嚴格的無菌技術
- DWeigh the client daily to monitor fluid status每日稱重以監測水分狀態
全靜脈營養（TPN）含有高濃度的葡萄糖、蛋白質與電解質，是細菌滋生的絕佳培養基。中心靜脈導管（CVC）直接通往心臟大血管，若發生導管相關血流感染（CRBSI），將導致敗血症等致命併發症。因此，在護理過程中，「無菌技術（sterile technique）」是預防感染的首要任務，換藥時必須嚴格遵守無菌原則。
Total parenteral nutrition (TPN) provides an ideal medium for bacterial growth due to its high glucose and protein content, significantly increasing the risk of catheter-related bloodstream infections (CRBSI). Because CRBSI can lead to life-threatening sepsis, maintaining strict sterile technique during dressing changes is the highest priority intervention to prevent infection.
美國醫院對於 TPN 的護理指引極度強調「無菌技術（sterile technique）」，護理師換藥時通常需要佩戴口罩並執行嚴格的無菌換藥程序（如使用專用換藥包），以符合 CRBSI 預防的 bundle 規範。