護理師準備對一位低血鉀病人進行靜脈注射氯化鉀。給藥前最重要的評估為何？
A nurse is preparing to administer potassium chloride intravenously to a client with hypokalemia. Which of the following is the most important assessment before administration?
- ACheck the client's blood glucose level檢查病人的血糖值
- BMeasure the client's blood pressure測量病人的血壓
- CInspect the skin for turgor檢查皮膚彈性
- DAssess the client's hourly urine output✓ 正解評估病人的每小時尿量
給予鉀離子（Potassium chloride）前，確認腎臟功能是確保安全的核心，因為鉀離子主要透過腎臟代謝排出。若病人尿量不足（通常指 <30 mL/hr），代表腎臟排泄功能受損，若此時給予鉀離子極易導致高血鉀（Hyperkalemia），進而引發致命的心律不整（如心室顫動）。此題強調護理師在給藥前的評估與安全機制。
Before administering potassium chloride, confirming renal function is the cornerstone of safe administration, because potassium is primarily excreted via the kidneys. If urine output is inadequate (generally less than 30 mL/hr), renal excretion is impaired, and potassium administration can easily produce hyperkalemia and life-threatening dysrhythmias such as ventricular fibrillation. This item emphasizes the nurse's pre-administration assessment and safety mechanism.