護理師準備為病人靜脈輸注氯化鉀（IVPB），哪項措施是確保安全的優先事項？
A nurse is preparing to administer potassium chloride intravenous piggyback (IVPB) to a client. Which action is the priority to ensure safety?
- ACheck the serum potassium level from the most recent laboratory report✓ 正解查看最近檢驗報告中的血清鉀濃度
- BVerify the dose with another nurse prior to administration在給藥前與另一位護理師核對劑量
- CAssess the client's urine output before initiating the infusion在開始輸注前評估病人的尿液排出量
- DEnsure the intravenous site is free from signs of phlebitis確保靜脈穿刺部位無靜脈炎跡象
鉀離子是高警戒藥物，過量會導致致命心律不整。給藥前最首要的是核對最新的血鉀濃度，確保病人在適應範圍內。若血鉀已在正常或偏高範圍，給藥會有危險。尿量評估重要，但在緊急性與風險優先序上，確認實驗室數值是防止錯誤投藥的首要動作。
Potassium is a high-alert medication, and excess potassium can cause lethal arrhythmias. The most important step before administration is to verify the most recent serum potassium level to confirm that it is within the appropriate range. If the serum potassium is already at or above the upper limit of normal, administration is dangerous. Although urine output assessment is important, in terms of urgency and risk, confirming the laboratory value is the first action that prevents medication errors.
台美對於高警訊藥物（High-Alert Medications）皆要求嚴格雙人核對機制。