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生理適應 · MEDIUM · SATA

對於服用 Warfarin 的病人,哪些檢驗結果需引起警惕?(選所有適合的)

Which lab results are concerning in a patient on Warfarin therapy? (Select all that apply.)

  • APT 25 seconds✓ 正解
    PT 25 秒
  • BINR 4.5✓ 正解
    INR 4.5
  • CINR 1.2✓ 正解
    INR 1.2
  • DPlatelet count 150,000/mm3
    血小板計數 150,000/mm3
  • EPT 12 seconds
    PT 12 秒
Explanation · 中文詳解

Warfarin 的治療目標是讓 INR 維持在 2.0-3.0 左右。INR > 4.5 代表抗凝過度(高出血風險);INR < 1.2 代表抗凝不足(血栓風險)。PT 值隨 INR 波動,通常對應延長。血小板 150k 是正常範圍。

Warfarin therapy aims for an INR of 2.0 to 3.0; values outside this range indicate either excessive anticoagulation with high bleeding risk (INR 4.5) or inadequate protection against clots (INR 1.2). Consequently, both extreme INR values and the corresponding prolonged PT are concerning findings. Normal platelet counts and baseline PT levels are not indicative of therapeutic issues.

✦ 台美臨床差異

美台皆高度依賴 INR 來調整 Warfarin,但美國護理師在門診抗凝血管理(Anticoagulation clinic)中扮演關鍵角色。

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