一位病患正在接受靜脈輸注氯化鉀 20 mEq 溶於 100 mL 生理食鹽水中，護理師觀察到輸注部位紅腫且溫熱。哪項為優先行動？
A client is receiving an intravenous infusion of potassium chloride 20 mEq in 100 mL of 0.9% Normal Saline. The nurse notes the site is red, swollen, and warm. Which action is priority?
- ANotify the physician of the finding將發現通知醫師
- BApply a cold compress to the site在注射部位應用冷敷
- CFlush the IV line to assess patency沖洗靜脈通路以評估通暢性
- DStop the infusion immediately✓ 正解立即停止輸注
氯化鉀（Potassium Chloride, KCl）是高警訊藥物（High-alert medication），具有強烈的血管刺激性。臨床觀察到輸注部位紅、腫、熱，顯示已發生靜脈炎（Phlebitis）或藥物滲漏（Infiltration）。護理師首要行動是立即停止輸注，以防止更多的藥物進入皮下組織，造成嚴重的組織壞死或刺激，這符合護理優先級（Safety/Priority）原則。
Potassium chloride (KCl) is a high-alert medication with strong vascular irritation potential. Redness, swelling, and warmth observed at the infusion site indicate that phlebitis or infiltration has occurred. The nurse's first action is to stop the infusion immediately to prevent further drug entry into the subcutaneous tissue, which could cause severe tissue necrosis or irritation. This follows the safety/priority principle of nursing care.
美國臨床對於 KCl 滲漏的處理非常謹慎，護理師通常會依據醫院 Protocol 嘗試回抽管內殘留藥物後再移除導管，並評估是否需要使用解毒劑。