病人正在靜脈輸注氯化鉀 20 mEq 於 100 mL 生理食鹽水中，護理師觀察到導管部位有紅腫與涼感。優先採取的護理措施為何？
A client is receiving an intravenous infusion of potassium chloride 20 mEq in 100 mL of 0.9% Normal Saline. The nurse notes redness, swelling, and a cool sensation at the IV insertion site. What is the priority nursing action?
- AStop the infusion immediately✓ 正解立即停止輸注
- BApply a warm compress to the area在該部位敷熱敷包
- CSlow the rate of the infusion減緩輸注速率
- DFlush the intravenous line to check patency沖洗靜脈導管以確認暢通
氯化鉀（KCl）屬於「高警訊藥物（High-Alert Medication）」，若發生靜脈滲漏（Infiltration）或外滲（Extravasation），會對周邊組織造成嚴重刺激、化學性灼傷甚至組織壞死。護理師觀察到紅腫與涼感時，代表導管已脫離血管或滲漏，此時第一優先反應必須是「立即停止輸注」，以阻斷藥物繼續進入組織。
Potassium chloride (KCl) is a high-alert medication. If infiltration or extravasation occurs, it causes severe tissue irritation, chemical burns, or even necrosis. When the nurse observes redness, swelling, or coolness at the IV site, this indicates the catheter has dislodged or fluid is leaking; the first priority is to stop the infusion immediately to halt further tissue exposure.