護理師準備靜脈給予氯化鉀（KCl）二次輸液。為了確保病人安全，下列何者為必要護理措施？
A nurse is preparing to administer potassium chloride (KCl) IV piggyback to a client. Which nursing action is essential for client safety?
- AMonitor for symptoms of hyperkalemia only after the infusion僅在輸液後監測高血鉀症狀
- BAdminister the dose as an IV bolus以靜脈推注方式給藥
- CAdminister the medication through an infusion pump at a rapid rate通過輸液幫浦快速給藥
- DEnsure the medication is diluted according to facility policy✓ 正解確保藥物依機構政策稀釋
氯化鉀（KCl）是高警訊藥物（High-Alert Medication）。靜脈輸注鉀離子必須經過適度稀釋，且嚴禁直接靜脈推注（IV Push/Bolus），因為高濃度的鉀離子會直接刺激心肌，導致致命的心律不整（如心室顫動）甚至心跳停止。給藥過程中必須透過輸液幫浦（Infusion pump）精確控制滴速，並全程監測心律與電解質變化。
Potassium chloride (KCl) is a high-alert medication. Intravenous infusion of potassium must be appropriately diluted, and direct IV push/bolus is strictly forbidden, because a high concentration of potassium directly stimulates the myocardium and causes fatal arrhythmias (such as ventricular fibrillation) or even cardiac arrest. During administration, the infusion rate must be precisely controlled using an infusion pump, and cardiac rhythm and electrolytes must be monitored throughout.