護理師教導一位新開立華法林（warfarin）處方的病人，哪位病人的敘述顯示他了解衛教內容？
A nurse is teaching a client who has a new prescription for warfarin. Which client statement indicates an understanding of the teaching?
- AI will use a soft-bristled toothbrush to prevent bleeding✓ 正解我會使用軟毛牙刷來預防出血
- BI will increase my intake of dark green leafy vegetables我會增加深色葉菜類的攝取量
- CI will take an aspirin if I develop a headache如果我頭痛，我會服用阿斯匹靈
- DI will stop the medication if I see bruising on my skin如果我看到皮膚上有瘀青，我會停止用藥
華法林為抗凝血劑，重點在於減少出血風險。使用軟毛牙刷可避免牙齦受傷出血。B 選項錯誤，綠色蔬菜富含維生素 K 會干擾藥效；C 選項錯誤，阿斯匹靈增加出血風險；D 選項錯誤，病人不可擅自停藥，必須回報醫師評估。
Warfarin is an anticoagulant, and the focus of care is on reducing bleeding risk. Using a soft-bristled toothbrush prevents gingival trauma and bleeding. Option B is incorrect because green leafy vegetables are rich in vitamin K, which antagonizes the drug's effect. Option C is incorrect because aspirin increases bleeding risk. Option D is incorrect because the client must not stop the medication independently and should report any bruising to the provider for evaluation.
在美國，病人自我監測（PT/INR）教育非常重視，台灣臨床則更強調醫師與衛教師共同監測與回診確認。