— 降低風險 · MEDIUM · MCQ —
一位服用 Digoxin 的心衰竭病人，應監測下列哪個數值？
A nurse is caring for a client with a history of heart failure who is receiving digoxin. Which lab value should be monitored?
- ASerum potassium✓ 正解血清鉀
- BSerum sodium血清鈉
- CSerum chloride血清氯化物
- DSerum calcium血清鈣
— Explanation · 中文詳解 —
Digoxin 的毒性與血鉀濃度高度相關。低血鉀會增加心肌對 Digoxin 的敏感性，導致中毒風險增加。因此，服用此藥物病人必須定期監測鉀離子，並提醒病人避免擅自停用利尿劑（因利尿劑常造成低血鉀）。
Digoxin toxicity is closely related to serum potassium levels. Hypokalemia increases myocardial sensitivity to digoxin, raising the risk of toxicity. Therefore, clients receiving this medication must have potassium regularly monitored and be reminded not to stop diuretics on their own (since diuretics often cause hypokalemia).
✦ 台美臨床差異
美台皆將「監測鉀離子」列為 Digoxin 護理的最高指導原則，台灣護理師亦常衛教病人注意視力異常等中毒徵象。