— 健康促進與維護 · EASY · MCQ —
護理師評估一位老年個案。下列何項發現是皮膚系統正常的年齡相關變化？
A nurse is assessing an older adult client. Which finding is considered a normal age-related change in the integumentary system?
- AIncreased collagen production膠原蛋白生成增加
- BIncreased skin thickness皮膚厚度增加
- CDecreased subcutaneous fat✓ 正解皮下脂肪減少
- DRapid cell regeneration細胞再生速度加快
— Explanation · 中文詳解 —
隨著年齡增長，皮膚系統會經歷一系列生理性退化。核心變化包括表皮層與真皮層連結變弱、膠原蛋白與彈性纖維減少，以及皮下脂肪（subcutaneous fat）的流失。皮下脂肪減少會導致皮膚緩衝能力下降、體溫調節功能減弱（易受冷）、皮膚皺褶增加以及保護屏障功能受損。在NCLEX考題中，區分「正常老化」與「病理性病變」是重點，皮下脂肪減少是典型的生理老化現象。
Decreased subcutaneous fat is a normal age-related change that contributes to reduced thermoregulation and skin cushioning. Aging also involves decreased collagen production, thinner skin, and slower cell regeneration, making options A, B, and D incorrect.