護理師對一位新開立華法林（Warfarin）處方的病人進行出院指導。下列哪一句病人敘述顯示需要進一步教學？
A nurse is providing discharge instructions to a client with a new prescription for warfarin. Which of the following statements by the client indicates a need for further teaching?
- AI should use an electric razor for shaving我應該使用電動刮鬍刀刮鬍
- BI will eat a large salad with green leafy vegetables every day✓ 正解我每天都會吃一大盤綠葉蔬菜沙拉
- CI need to keep my follow-up appointments for blood tests我需要按時回診進行血液檢查
- DI will report any unusual bleeding or bruising to my doctor我會向醫師報告任何異常出血或瘀青
華法林（Warfarin）作為維生素 K 拮抗劑，其抗凝血作用與體內維生素 K 含量直接相關。飲食中攝取維生素 K 的量若大幅波動，會導致凝血酶原時間國際標準化比值（INR）不穩定，進而增加出血或血栓風險。病人應維持飲食中綠色蔬菜的攝取「穩定」，而非刻意大量食用或完全禁食。本題正確選項為 B，因為突然改變飲食習慣會嚴重影響藥物效能。
Warfarin therapy requires consistent vitamin K intake to maintain stable INR levels; sudden increases in green leafy vegetables can decrease the drug's effectiveness. Clients should understand that dietary habits must remain steady rather than fluctuating significantly. Reporting this intention indicates a misunderstanding of the need for consistency in vitamin K consumption.
台灣與美國在衛教邏輯上一致。但在美國臨床實務中，藥師（Pharmacist）常會參與 anticoagulation clinic 的追蹤，護理師衛教時常會強調病患需與臨床團隊溝通任何飲食或藥物（包括草藥）的變化。