— 降低風險 · MEDIUM · MCQ —
護理師教導病人有關華法林（Warfarin）的治療。應建議病人攝取何種食物以保持穩定量？
A nurse is teaching a client about warfarin therapy. Which food should the client be advised to consume in consistent amounts?
- ARed meat紅肉
- BGreen leafy vegetables✓ 正解綠色葉菜類蔬菜
- CDairy products乳製品
- DCitrus fruits柑橘類水果
— Explanation · 中文詳解 —
Warfarin 是一種維生素 K 拮抗劑（Vitamin K Antagonist），其抗凝血機轉是透過抑制肝臟合成依賴維生素 K 的凝血因子（II、VII、IX、X）。飲食中維生素 K 的攝取量會直接影響 Warfarin 的抗凝血效果。若病人攝取量忽高忽低，會導致國際標準化比值（INR）波動，增加出血或栓塞風險。因此，衛教重點在於「穩定」攝取，而非「禁止」攝取。
Warfarin is a vitamin K antagonist that inhibits the synthesis of vitamin K-dependent clotting factors. Because dietary vitamin K directly affects warfarin's anticoagulant efficacy, patients should consume green leafy vegetables in consistent amounts to maintain stable INR levels and reduce the risk of bleeding or thrombosis.