— 降低風險 · MEDIUM · MCQ —
護理師準備為低血鉀病人靜脈輸注氯化鉀，下列何者為優先評估重點？
A nurse is preparing to administer potassium chloride IV to a client with hypokalemia. Which of the following is the priority assessment?
- ASerum sodium level血清鈉濃度
- BPeripheral edema周邊水腫
- CBlood glucose level血糖濃度
- DUrine output✓ 正解尿量
— Explanation · 中文詳解 —
鉀離子主要經由腎臟排泄。在給予靜脈輸注氯化鉀（KCl）之前，護理師必須確認病人的腎功能正常。評估尿量（Urine output）是判斷腎功能最直接的指標，若尿量小於 30 ml/hr，代表腎臟排泄功能受損，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。因此，評估尿量是給藥安全的前提。
Since potassium is primarily excreted by the kidneys, assessing urine output is the priority before administering intravenous potassium chloride to ensure adequate renal function. Inadequate urine output indicates impaired excretion, which significantly increases the risk of hyperkalemia and potentially fatal cardiac arrhythmias.