護理師準備對低血鉀病人輸注氯化鉀。給藥前最優先評估的臨床指標為何？
A nurse is preparing to administer intravenous potassium chloride to a client with hypokalemia. Which assessment finding is the priority before initiating the infusion?
- AUrine output✓ 正解尿量
- BPeripheral IV site integrity周邊靜脈注射部位完整性
- CSerum glucose levels血清葡萄糖濃度
- DBlood pressure reading血壓讀數
靜脈輸注鉀離子時，腎臟排泄功能至關重要。若尿量不足（<30 mL/hr），意味著排泄受阻，持續輸注極易引發高血鉀及致命性心律不整。雖然靜脈管路滲漏（B）很重要，但尿量代表全身代謝排泄功能，是確保給藥安全性最關鍵的生理指標。
When administering intravenous potassium, renal excretory function is critical. If urine output is inadequate (<30 mL/hr), excretion is impaired and continued infusion can readily cause hyperkalemia and fatal arrhythmias. Although IV site integrity (B) is important, urine output reflects systemic metabolic and excretory function and is the most critical physiologic indicator for ensuring safe potassium administration.
美國護理師對 K+ 給藥有嚴格的尿量 protocol 規定；台灣臨床習慣依賴醫師醫囑，但護理師仍應主動評估。