— 藥理與非經腸給藥 · EASY · MCQ —
在給予毛地黃(Digoxin)前,護理師最重要的評估項目為何?
Which assessment is most important for the nurse to perform prior to administering digoxin?
- AAssess the client's urine output評估病人的尿量
- BMeasure the apical heart rate for one full minute✓ 正解測量心尖脈搏整整一分鐘
- CAsk the client about visual changes詢問病人是否有視覺變化
- DCheck the client's potassium level檢查病人的鉀離子濃度
— Explanation · 中文詳解 —
毛地黃(Digoxin)具有強心作用,但同時具備負性變時作用(Negative Chronotropic Effect),會減慢房室結的傳導。若病人已存在心跳過慢(Bradycardia),給藥可能導致嚴重的傳導阻滯或心律不整。因此,給藥前的安全護理標準是必須測量心尖脈(Apical Pulse)一整分鐘。這能確保護理師完整評估心跳速率與規律性,若心跳低於安全門檻(成人通常 <60 bpm),必須暫停給藥並通知醫師。
Digoxin has a negative chronotropic effect that slows the heart rate, so the nurse must measure the apical pulse for a full minute before administration. If the heart rate is below the safe threshold (typically <60 bpm), the dose should be withheld to prevent severe bradycardia or heart block.
✦ 台美臨床差異
在美國臨床執業中,護理師依據醫院政策(Protocol)通常有權在心率 <60 bpm 時自行決定暫停給藥並通知醫師,且這屬於護理師的獨立判斷範圍(Scope of Practice),無需等待醫師重新開立醫囑。