— 生理適應 · MEDIUM · MCQ —
護理師正在照護一位慢性阻塞性肺病(COPD)病人。哪項評估發現表明低血氧症(hypoxemia)正在惡化?
A nurse is caring for a client with chronic obstructive pulmonary disease (COPD). Which assessment finding indicates worsening hypoxemia?
- ASpO2 of 90% on 2 L/min oxygenSpO2 為 90%(給予 2 L/min 氧氣)
- BRestlessness and confusion✓ 正解煩躁不安與意識混亂
- CClient is able to speak in short sentences病人能說短句
- DMild pedal edema輕微足部水腫
— Explanation · 中文詳解 —
低血氧症會影響大腦功能,初期表現可能為煩躁不安(restlessness)、意識混亂(confusion)、判斷力下降等。儘管 SpO2 90% 雖非理想,但相較於神經學症狀,後者更直接反映組織缺氧的嚴重性。短句子表示尚可溝通,足部水腫多與右心衰竭相關。
Restlessness and confusion are early neurological signs of cerebral hypoxia, indicating worsening hypoxemia in a client with COPD. These symptoms reflect the brain's sensitivity to low oxygen levels and require immediate assessment and intervention.
✦ 台美臨床差異
美國對 COPD 病人的長期居家照護計畫較為普及,包含氧氣使用指導與症狀監測;台灣近年也積極推廣 COPD 病人教育,但病人資源與居家支持系統的差異仍存在。