當準備給予與主輸液不相容的藥物時，護理師應採取什麼行動？
Which action should the nurse take when preparing to administer an IV piggyback of a medication that is incompatible with the primary solution?
- AFlush the line with saline before and after the piggyback✓ 正解在附加輸液前後以生理食鹽水沖洗管路
- BMix both medications in the same bag將兩種藥物混合在同一袋中
- CDisconnect the primary line and start a new IV site斷開主輸液線並建立新的靜脈穿刺點
- DAdminister the medications at the same time through the same port通過同一個端口同時給予藥物
靜脈輸液相容性是給藥安全的核心。當藥物與主輸液（Primary solution）不相容時，直接混合會導致藥物沉澱、結晶或失效，甚至可能阻塞管路或引發栓塞。護理師應利用生理食鹽水沖洗管路（Line flush）作為緩衝區，確保藥物在進入體內前與主輸液完全隔離。臨床思路應優先評估相容性圖表（Compatibility chart），若無法確認，應選擇此類安全沖洗步驟，以保護病人安全。
When administering an IV piggyback medication incompatible with the primary solution, the nurse must flush the line with saline before and after the infusion to prevent precipitation. This ensures the medications remain isolated and avoids potential blockages or adverse reactions caused by mixing incompatible substances.
在美國臨床，護理師需嚴格遵守醫院的 IV Compatibility Manual 或藥庫軟體（如 Lexicomp）。台灣有時習慣依賴經驗，但在美執業必須依據實證指引，且若需給予不相容藥物，通常會優先評估是否有其他靜脈管路（Dedicated line）。