一位接受化學治療的病人。處理血管外滲（Extravasation）時，哪項評估為優先？
A nurse is caring for a client receiving chemotherapy. Which assessment is priority when managing extravasation of a vesicant?
- AStop the infusion immediately✓ 正解立即停止輸注
- BCheck for blood return in the IV catheter檢查靜脈導管的回血情況
- CApply a cold compress施加冷敷
- DAssess the infusion site for pain and swelling評估輸注部位是否有疼痛和腫脹
化學治療藥物中，發泡劑（Vesicant）若發生血管外滲（Extravasation），會對周圍組織造成嚴重的壞死與損傷。護理師若懷疑外滲，首要且最關鍵的行動是立即停止輸注，以阻止更多藥物進入皮下組織。隨後應保持靜脈導管在位，嘗試抽吸殘留藥物後再執行移除，並根據藥物特性選擇冷敷或熱敷，以及給予適當的解毒劑。
When a vesicant chemotherapy agent extravasates, it can cause severe necrosis and damage to the surrounding tissue. If the nurse suspects extravasation, the first and most critical action is to stop the infusion immediately in order to prevent further medication from entering the subcutaneous tissue. The IV catheter should then be left in place to attempt to aspirate residual drug before removal, and either cold or warm compresses and the appropriate antidote should be used based on the specific drug.