— 健康促進與維護 · MEDIUM · MCQ —
護理師教導病人使用定量吸入器（MDI）搭配輔助吸入器（Spacer）。其主要益處為何？
A nurse is educating a client about the use of a spacer with a metered-dose inhaler (MDI). What is the primary benefit?
- AIt increases the amount of medication deposited in the mouth and throat它增加了沉積在口腔和咽喉中的藥物量
- BIt speeds up the delivery of medication to the lungs它加快了藥物遞送至肺部速度
- CIt prevents the need to clean the inhaler它避免了清潔吸入器的需求
- DIt eliminates the need for hand-breath coordination✓ 正解它消除了對手肺協調的需求
— Explanation · 中文詳解 —
輔助吸入器（Spacer/Holding chamber）能減緩氣霧速度，增加藥物在肺部的沉積率，並大幅減少藥物留在口腔與咽喉處（可降低類固醇引起的鵝口瘡副作用）。同時，它能解決吸入器啟動與吸氣同步的困難。
A spacer or holding chamber slows the aerosol's velocity, increases drug deposition in the lungs, and significantly reduces the amount of medication retained in the mouth and throat (lowering the risk of corticosteroid-induced oral thrush). It also addresses the difficulty of coordinating actuation with inhalation.
✦ 台美臨床差異
台灣呼吸道疾患病人對於 Spacer 的接受度已提升，但仍需護理師積極推廣以確保正確使用。