— 生理適應 · HARD · MCQ —
一位病人正經歷急性氣喘發作，哪種臨床表現顯示病人正處於危及生命的呼吸道急症？
A client is experiencing an acute asthma exacerbation. Which clinical manifestation indicates that the client is experiencing a life-threatening airway emergency?
- ATachypnea呼吸急促
- BInspiratory wheezing吸氣性喘鳴
- CSilent chest✓ 正解無聲胸（呼吸音消失）
- DIntercostal retractions肋間凹陷
— Explanation · 中文詳解 —
「Silent chest」（靜默肺）意指呼吸音極度微弱甚至消失，代表氣道完全阻塞，病人已無法進行足夠的氣體交換，屬於最危急的徵兆。相較之下，喘鳴音（wheezing）代表尚有氣流進出，雖嚴重但不如呼吸音消失來得致命。
A 'silent chest' means breath sounds are markedly diminished or absent, indicating complete airway obstruction and inability to maintain adequate gas exchange; it is the most critical warning sign. In comparison, wheezing indicates that some air is still moving; although serious, it is less lethal than the absence of breath sounds.
✦ 台美臨床差異
此為全球通用的呼吸評估原則，無顯著實務差異。