護理師準備對病人靜脈注射氯化鉀（KCl）。執行此醫囑時，哪項護理行動最正確？
A nurse is preparing to administer IV potassium chloride (KCl) to a client. Which nursing action is most appropriate when administering this medication?
- AAdminister via a peripheral line only僅經周邊靜脈線給藥
- BAdminister as an IV bolus push以靜脈推注方式給藥
- CVerify the medication is diluted before administration✓ 正解確認藥物稀釋後再給藥
- DMonitor for rapid heart rate changes監測心跳速率變化
氯化鉀（KCl）屬於高警訊藥物（High-Alert Medication），具有強烈的血管刺激性。若未經稀釋直接靜脈推注（IV Push），會導致高鉀血症並直接刺激心肌，引發致命性的心律不整甚至心跳停止。給藥時必須確保藥物充分稀釋，通常以靜脈輸液幫浦（IV Pump）精確控制滴速，並優先選擇較粗的周邊血管或中心靜脈通路（CVC）以減少局部刺激與靜脈炎風險。
Potassium chloride (KCl) is a high-alert medication that is highly irritating to blood vessels. Administering it as an undiluted IV push leads to hyperkalemia and direct myocardial irritation, causing fatal arrhythmias or cardiac arrest. KCl must be fully diluted before administration; the infusion rate is typically controlled precisely with an IV pump, and a larger peripheral vein or a central venous catheter (CVC) is preferred to reduce local irritation and the risk of phlebitis.
美國臨床對於高濃度 KCl 給藥極為嚴格，通常要求至少由兩位護理師進行雙重核對（Double-check），且許多醫院規定鉀離子輸注濃度不得超過 10mEq/100mL（若由周邊靜脈給予），若超過此濃度必須使用中心靜脈導管。