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生理適應 · MEDIUM · MCQ

一位有深層靜脈血栓(DVT)病史的病人被處方 Warfarin。護理師正在檢視病人的實驗室結果。何項發現需要立即通知醫囑?

A client with a history of deep vein thrombosis (DVT) is prescribed warfarin. The nurse is reviewing the client's laboratory results. Which finding requires immediate notification of the healthcare provider?

  • AINR 1.8
    INR 1.8
  • BINR 2.5
    INR 2.5
  • CINR 4.0✓ 正解
    INR 4.0
  • DINR 3.2
    INR 3.2
Explanation · 中文詳解

Warfarin 的治療目標 INR 通常為 2.0-3.0。INR 4.0 表示抗凝血作用過強,出血風險顯著升高,需要立即通知醫囑,可能需要暫停用藥或給予維生素 K。INR 2.5 和 3.2 均在治療範圍內;INR 1.8 偏低,但非立即危險。

The therapeutic INR range for a client with DVT is typically 2.0 to 3.0. An INR of 4.0 exceeds this range, indicating excessive anticoagulation and a significantly increased risk of bleeding, which requires immediate provider notification for potential dose adjustment or vitamin K administration.

✦ 台美臨床差異

美國藥師常參與 Warfarin 的 INR 監測與藥物調整;台灣則主要由醫師和護理師執行,藥師的角色可能較為諮詢性。

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