— 生理適應 · HARD · MCQ —
一位張力性氣胸病人出現下列哪項評估發現最令人擔心？
Which assessment finding in a patient with a tension pneumothorax is most alarming?
- ATracheal deviation✓ 正解氣管偏移
- BChest pain胸痛
- CTachypnea呼吸急促
- DDecreased breath sounds呼吸音減弱
— Explanation · 中文詳解 —
張力性氣胸（Tension pneumothorax）是呼吸系統急症。當胸膜腔內壓力持續上升，會造成縱隔結構（包含氣管與心臟）被推向健側，導致靜脈回流受阻與心輸出量驟減，引發休克。氣管偏移（Tracheal deviation）是此病症的晚期且危險徵象，代表病人隨時可能心跳停止，需立即進行針頭減壓。
Tracheal deviation is the most alarming sign because it indicates a life-threatening mediastinal shift that compresses the vena cava, severely impairing venous return and cardiac output. This late-stage symptom signals imminent cardiovascular collapse, requiring immediate intervention such as needle decompression.