護理師準備對心衰竭嬰兒給予地高辛（Digoxin）。給藥前最合適的動作為何？
A nurse is preparing to administer digoxin to an infant with heart failure. What is the most appropriate action before administration?
- ACheck the client's blood pressure檢查病患的血壓
- BObserve for signs of vomiting觀察嘔吐跡象
- CCount the apical pulse for one full minute✓ 正解完整計量心尖脈搏一分鐘
- DCheck the serum digoxin level檢查血清地高辛濃度
地高辛（Digoxin）具強心與減慢心率作用，對嬰兒具高度毒性。給藥前必須聽診心尖脈（Apical pulse）整整一分鐘，若心率低於特定閾值（通常為 90-100 bpm）則須暫停給藥並通知醫師，以防心動過緩或傳導阻滯。這是給予地高辛嬰兒最關鍵的安全評估，能及時發現藥物毒性跡象，保護嬰兒心臟功能。
Digoxin has positive inotropic and rate-slowing effects and is highly toxic in infants. Before administration, the apical pulse must be auscultated for a full minute; if the heart rate falls below a specific threshold (usually 90-100 bpm), the dose must be held and the physician notified, to prevent bradycardia or conduction block. This is the most critical safety assessment when giving digoxin to an infant; it allows signs of drug toxicity to be detected in a timely manner and protects the infant's cardiac function.