護理師準備靜脈輸注氯化鉀，下列哪項安全措施最關鍵？
A nurse is preparing to administer potassium chloride intravenously. Which safety measure is most critical?
- AVerify the client's serum potassium level確認病人的血清鉀濃度
- BAssess the IV site for signs of infiltration評估靜脈注射部位是否有滲漏跡象
- CEnsure the medication is administered via an infusion pump✓ 正解確保使用輸液幫浦給藥
- DDilute the medication in at least 100 mL of fluid將藥物稀釋於至少 100 mL 液中
氯化鉀（KCl）屬於高警訊藥物（High-alert medication），若給藥過快會導致嚴重心律不整甚至心搏停止。使用輸液幫浦（infusion pump）能確保給藥速度精準，避免人為操作導致的輸注過快。雖然監測血鉀及評估注射部位皆為護理常規，但確保輸注速度的安全性在給藥過程中位居優先順序之首。
Potassium chloride (KCl) is a high-alert medication; if administered too rapidly, it can cause severe dysrhythmias or even cardiac arrest. Use of an infusion pump ensures precise control of the administration rate and prevents human errors that lead to overly rapid infusion. Although monitoring the serum potassium level and assessing the IV site are routine nursing actions, ensuring the safety of the infusion rate is the highest priority during administration.
美國臨床對於 KCl 的給藥規範非常嚴格，通常要求嚴禁直接靜脈推注（IV push），且必須在監測心電圖（ECG）的情況下給予，輸液幫浦是標準配備。