— 藥理與非經腸給藥 · EASY · MCQ —
護理師衛教病人使用定量噴霧吸入器（MDI）。下列哪項說明正確？
A nurse is teaching a client about using a metered-dose inhaler (MDI). Which instruction is correct?
- AShake the inhaler well before use✓ 正解使用前充分搖晃吸入器
- BUse a spacer to improve delivery使用輔助接合器以改善藥物輸送
- CInhale slowly and deeply while pressing the canister按壓罐體時緩慢且深深地吸氣
- DExhale deeply after inhaling the medication吸入藥物後深深呼氣
— Explanation · 中文詳解 —
使用定量噴霧吸入器（MDI）時，確保藥物劑量準確且能有效進入下呼吸道是關鍵。藥液在容器內容易沉澱，搖晃能確保藥物懸浮均勻，提供每次噴出的劑量一致。正確的操作流程為：搖晃藥瓶、深呼氣、將噴嘴置於口中並密封、在吸氣的同時按壓、緩慢深吸氣、屏住呼吸 10 秒以讓藥物沉降，最後緩慢呼氣。若無法協調吸氣與按壓，應建議使用輔助接合器（Spacer）。
Shaking the metered-dose inhaler (MDI) thoroughly before use is essential to ensure the medication and propellant are properly mixed for an accurate dose. The correct technique involves shaking the device, exhaling fully, placing the mouthpiece in the mouth, pressing the canister while inhaling slowly and deeply, holding the breath for 10 seconds, and then exhaling slowly. Using a spacer can help if coordination is difficult, but shaking remains the critical first step.