# 一位護理師教導個案使用定量噴霧吸入器與吸藥輔助器。個案的哪項陳述顯示教導有效？

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=391770&lang=zh-tw  
> language: zh-TW  
> subject: Medical Emergencies  
> category: PA

## 題目

一位護理師教導個案使用定量噴霧吸入器與吸藥輔助器。個案的哪項陳述顯示教導有效？

## 選項

1. 「我會按下藥罐，然後立刻快速用力吸入。」
2. 「我會按下藥罐，花3-5秒慢慢深吸，然後憋氣10秒。」 **✔ 正確答案**
3. 「吸入藥物前，我會把氣完全吐進spacer裡。」
4. 「我會在一次呼吸中快速按兩下，得到雙倍劑量。」

**正確答案: 2**

## 解析

正確 (2)：正確的 MDI 與吸藥輔助器使用技巧：搖晃 → 遠離裝置呼氣 → 嘴唇密封吸嘴 → 按壓藥罐一次 → 在 3-5 秒內緩慢深吸 → 閉氣 10 秒 → 緩慢呼氣。每次噴霧之間至少等待 30-60 秒。(1) 快速用力吸入會使藥物沉積在喉嚨，而非肺部。(3) 雙次按壓會浪費劑量。(4) 向吸藥輔助器內呼氣會污染並稀釋劑量。

## 深入解析

Memory Tip MDI = 搖、吐、密封、按、慢深吸、憋氣。Spacer可減少口咽沉積並改善肺部送藥。

## 臨床情境

Scenario 9歲兒童新開立albuterol MDI with spacer。護理師正在和家長做第一次技巧教學。

## 重要概念

- **Spacer裝置** — 接在MDI上的holding chamber，可改善藥物送達並減少口腔沉積。
- **MDI技巧** — 按一次，慢慢深吸，憋氣10秒。
- **吸入藥順序** — 若兩類都開立：先用支氣管擴張劑，再用corticosteroid；使用corticosteroid後漱口。

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