護理師準備為低血鉀病人靜脈輸注氯化鉀，給藥前何項評估最為關鍵？
A nurse is preparing to administer intravenous potassium chloride to a client with hypokalemia. Which assessment finding is the highest priority before administration?
- AUrine output✓ 正解尿量
- BSerum creatinine level血清肌酸酐濃度
- CPeripheral IV site integrity周邊靜脈注射部位完整性
- DBlood pressure reading血壓讀數
靜脈輸注氯化鉀（KCl）具有高度風險。鉀離子主要經由腎臟代謝，若病人腎功能受損（如無尿），輸注鉀離子會導致嚴重的致命性高血鉀症。因此，在給藥前確認病人尿量充足（至少 30 mL/hr）是確保腎臟排泄功能正常的首要步驟。血壓與局部管路狀況雖重要，但相較於生命徵象的穩定，腎臟排泄功能是給予鉀離子時的安全基石。
Intravenous administration of potassium chloride (KCl) carries a high risk. Potassium is primarily excreted by the kidneys; if renal function is impaired (e.g., anuria), potassium infusion can produce severe, life-threatening hyperkalemia. Therefore, confirming adequate urine output (at least 30 mL/hr) before administration is the first step in ensuring normal renal excretory function. Although blood pressure and IV site integrity are important, renal excretory function is the safety foundation for potassium administration relative to vital sign stability.