— 藥理與非經腸給藥 · EASY · MCQ —
護理師準備對心房顫動病人給予華法林（Warfarin）。應先查閱哪項實驗室檢驗值？
A nurse is preparing to administer warfarin to a client with atrial fibrillation. Which lab value should the nurse review?
- APT/INR✓ 正解PT/INR
- BHemoglobin血紅素
- CPlatelet count血小板計數
- DaPTTaPTT
— Explanation · 中文詳解 —
華法林屬於維生素 K 拮抗劑，臨床需藉由監測凝血酶原時間（PT）及其衍生的國際標準化比值（INR）來評估治療成效與調整劑量。aPTT 用於監測肝素（Heparin），血小板與血紅素則與一般血液循環狀況有關，並非華法林直接監測指標。
Warfarin is a vitamin K antagonist. Therapeutic effect and dose adjustment are monitored with PT and its standardized derivative INR (typical target 2.0–3.0 for atrial fibrillation). aPTT is used for heparin; platelet count and hemoglobin reflect general hematologic status but are not the primary monitoring parameter for warfarin.
✦ 台美臨床差異
無明顯差異，皆嚴格遵守根據 INR 調整劑量的臨床準則。