— 藥理與非經腸給藥 · EASY · MCQ —
護理師準備給予心衰竭病人地高辛(Digoxin)時,哪項評估結果需要暫停給藥?
A nurse is preparing to administer digoxin to a client with heart failure. Which assessment finding requires the nurse to withhold the dose?
- APotassium 4.2 mEq/L鉀離子 4.2 mEq/L
- BApical pulse 56 beats/min✓ 正解心尖脈搏 56 次/分
- CBlood pressure 110/70 mmHg血壓 110/70 mmHg
- DDigoxin level 0.8 ng/mL地高辛濃度 0.8 ng/mL
— Explanation · 中文詳解 —
地高辛(Digoxin)具有強心作用(正性肌力)與負性變時作用(減慢心率)。臨床上,給藥前的關鍵安全評估是測量心尖脈(Apical pulse),以預防嚴重的藥物性心動過緩。成人給藥的標準為心跳低於 60 下/分時必須暫停給藥並通知醫師。這是 NCLEX 考試中關於藥物安全性與優先級的經典考題,必須優先評估心率以確保病人安全。
Digoxin has positive inotropic and negative chronotropic effects (slowing heart rate). The key pre-administration safety assessment is the apical pulse to prevent drug-induced bradycardia. The standard for adults is to withhold the dose and notify the provider if heart rate <60 bpm. This is a classic NCLEX safety/priority item—heart rate must be assessed first.
✦ 台美臨床差異
在美國臨床實務中,對於心率評估的標準極為嚴格(通常為 60 bpm),且護理師需具備獨立判斷暫停給藥(Hold dose)的權限,並在記錄中清楚註明原因。