— 降低風險 · MEDIUM · MCQ —
護理師準備為病人靜脈點滴輸注氯化鉀（IVPB），下列哪項措施最優先？
A nurse is preparing to administer potassium chloride intravenous piggyback (IVPB) to a client. Which action is the priority?
- AAssess the patency of the IV site評估靜脈通路的暢通性
- BEnsure the client has voided recently確認病人近期有排尿
- CVerify the infusion rate with another nurse與另一位護理師核對輸注速率
- DCheck the client's most recent serum potassium level✓ 正解檢查病人最近的血清鉀濃度
— Explanation · 中文詳解 —
給予鉀離子補充前，確認血鉀數值是預防高血鉀造成致命心律不整的關鍵步驟。即便醫囑已開立，仍須確保病人目前鉀離子狀態未達到過高，以免發生意外。其他選項均為給藥流程的一環，但確認數據安全性優先於給藥路徑或尿量評估。
Checking the most recent serum potassium level is the priority before administering IV potassium chloride to prevent life-threatening hyperkalemia. While verifying IV patency and infusion rates are important, ensuring the client does not already have elevated potassium levels is critical for safety.
✦ 台美臨床差異
台美皆嚴格規範鉀離子給藥，美國護理師常需透過點對點 double sign 確認劑量，台灣則多由護理師獨立核對後執行。