— 藥理與非經腸給藥 · MEDIUM · MCQ —
一位接受肝素(Heparin)靜脈點滴治療的病人,其 PTT 值達 120 秒。護理師首要行動為何?
A patient receiving IV heparin therapy develops a partial thromboplastin time (PTT) of 120 seconds. What is the nurse's priority action?
- APrepare to administer protamine sulfate準備給予硫酸魚精蛋白
- BDraw a repeat blood sample to verify the result抽取重複血液樣本以驗證結果
- CStop the heparin infusion✓ 正解停止肝素輸注
- DIncrease the heparin infusion rate增加肝素輸注速率
— Explanation · 中文詳解 —
肝素治療的 PTT 目標值通常為對照值的 1.5-2.5 倍。當 PTT 達到 120 秒時(遠高於一般治療範圍),顯示病人有高出血風險。護理師的首要行動應為暫停滴注以防止發生嚴重出血事件,隨後通知醫師並評估是否有出血跡象。
The target PTT for heparin therapy is generally 1.5-2.5 times the control value. A PTT of 120 seconds (well above the typical therapeutic range) indicates a high bleeding risk. The nurse's first action is to stop the infusion to prevent a serious bleeding event, then notify the physician and assess for signs of bleeding.
✦ 台美臨床差異
美台皆需遵守嚴格的肝素滴定協議(Nomogram),護理師須精確執行 protocol。