— 降低風險 · MEDIUM · MCQ —
護理師正在照顧一位有深層靜脈血栓（DVT）病史的病人。該病人被處方使用華法林。下列哪項病人陳述表示需要進一步指導？
A nurse is caring for a client with a history of deep vein thrombosis (DVT). The client is prescribed warfarin. Which statement by the client indicates a need for further teaching?
- AI will avoid taking aspirin unless my doctor tells me to.我會避免服用阿斯匹靈，除非醫師指示。
- BI will stop taking warfarin if I feel fine.✓ 正解如果我感覺良好，我會停止服用華法林。
- CI will have my blood tested regularly to check my INR.我會定期驗血以檢查我的 INR。
- DI will eat a consistent amount of leafy green vegetables daily.我每天會攝取固定量的綠葉蔬菜。
— Explanation · 中文詳解 —
華法林（Warfarin）是一種維生素 K 拮抗劑，用於長期預防血栓形成。其療效取決於持續且穩定的藥物濃度。自行停藥會導致凝血因子恢復合成，迅速增加血栓復發（如 DVT 或肺栓塞）的風險。病人必須理解華法林是預防性藥物，且需定期監測國際標準化比值（INR）以調整劑量，絕不可因自我感覺良好而擅自停藥。
Warfarin is a long-term anticoagulant that requires consistent dosing to maintain therapeutic INR levels and prevent clot recurrence. Stopping the medication because the client feels well is dangerous, as it allows clotting factors to resume synthesis, significantly increasing the risk of recurrent deep vein thrombosis or pulmonary embolism.