— 生理適應 · EASY · MCQ —
一位 COPD 病患學習噘嘴式呼吸。此技巧的主要益處為何？
A client with COPD is being taught about pursed-lip breathing. What is the primary benefit of this technique?
- ATo increase intake of oxygen增加氧氣攝取量
- BTo decrease respiratory rate only僅降低呼吸頻率
- CTo prevent airway collapse during exhalation✓ 正解防止呼氣時氣道塌陷
- DTo strengthen the diaphragm強化橫膈膜
— Explanation · 中文詳解 —
噘嘴式呼吸（Pursed-lip breathing）能延長呼氣時間，維持氣道內的壓力，防止細支氣管在呼氣時過早塌陷（Airway collapse），有助於二氧化碳的排出。非單純增加氧氣量，也非直接強化橫膈肌。
Pursed-lip breathing creates backpressure that keeps airways open during exhalation, preventing premature collapse. This technique helps prolong expiration and facilitates the elimination of carbon dioxide in clients with COPD.
✦ 台美臨床差異
美國護理師衛教常包含此內容；台灣呼吸治療師（RT）亦會介入教導，兩地一致。