— 降低風險 · MEDIUM · MCQ —
護理師在教導病人服用華法林（Warfarin），哪句話說明病人理解飲食注意事項？
A nurse is teaching a client about warfarin therapy. Which statement indicates the client understands the dietary precautions?
- AI will keep my intake of vitamin K consistent✓ 正解我會保持維生素 K 攝取量一致
- BI will increase my intake of leafy green vegetables我會增加深綠色蔬菜的攝取
- CI will avoid all fruits and vegetables我會避免所有水果和蔬菜
- DI will take my medication with a glass of grapefruit juice我會用一杯葡萄柚汁送服藥物
— Explanation · 中文詳解 —
華法林（Warfarin）是維生素 K 拮抗劑。維生素 K 在凝血因子合成中扮演關鍵角色，攝取量的波動會導致 INR（國際標準化比率）不穩定，進而導致凝血時間過短（血栓風險）或過長（出血風險）。因此，護理衛教的重點不在於「完全避免」攝取綠色蔬菜，而在於「恆定」的攝取量，使 INR 控制在治療目標範圍內。
Warfarin acts as a vitamin K antagonist, so maintaining a consistent daily intake of vitamin K is essential for stable anticoagulation. Fluctuations in vitamin K consumption can cause unpredictable changes in the International Normalized Ratio (INR), leading to either thrombotic or bleeding risks. Patients should not eliminate green vegetables but rather keep their consumption steady.