— 生理適應 · MEDIUM · MCQ —
護理師正在照護一位剛從心肌梗塞（MI）恢復的病人。哪項實驗室數值顯示再灌流治療成功？
A nurse is caring for a client recovering from a myocardial infarction (MI). Which laboratory value suggests successful reperfusion therapy?
- AA stable level of myoglobin肌紅蛋白水平穩定
- BDecreasing levels of troponin I肌鈣蛋白 I 水平下降
- CIncreasing levels of creatine kinase-MB (CK-MB)肌酸激酶-MB (CK-MB) 水平上升
- DA rapid rise and subsequent fall in troponin I levels✓ 正解肌鈣蛋白 I 水平快速上升隨後下降
— Explanation · 中文詳解 —
再灌流治療（如氣球擴張術或血栓溶解劑）的目標是恢復心肌血流。心肌損傷指標（如肌鈣蛋白 Troponin I）在心肌梗塞後數小時升高，若治療成功，應在數小時至一天內看到其快速升高後開始下降的趨勢，表示損傷範圍停止擴大且已獲血流供應。
The goal of reperfusion therapy (such as balloon angioplasty or thrombolytic agents) is to restore blood flow to the myocardium. Markers of myocardial injury (such as troponin I) rise within hours after myocardial infarction. When therapy is successful, a rapid rise followed by a downward trend should be observed within hours to a day, indicating that the extent of injury has ceased to expand and blood supply has been restored.
✦ 台美臨床差異
美國的介入性心導管治療非常普及，護理師在術後會密切監測心肌損傷指標的變化；台灣也普及，但可能部分地區資源差異較大。