護理師照護一名脈搏血氧飽和度為 88% 的病人。護理師的優先行動是什麼?
A nurse is caring for a client with a pulse oximetry reading of 88%. What is the nurse's priority action?
- ACheck the placement of the pulse oximeter probe檢查脈搏血氧儀探頭的位置
- BNotify the respiratory therapist通知呼吸治療師
- CPlace the client in high-Fowler's position✓ 正解將病人置於高福勒氏臥位
- DEncourage the client to take deep breaths鼓勵病人深呼吸
核心概念:脈搏血氧飽和度(Pulse Oximetry)低於正常值的處理優先序。 為何正確答案對: D. 血氧飽和度(SpO2)低於 90-92%(通常 88% 被認為是需要關注的低值)表示病人有組織缺氧(Hypoxia)的風險。改善通氣是解決缺氧的首要步驟。將病人置於高姿臥位(High-Fowler's position,即半坐臥,約 45-90 度)可以最大化胸腔擴張空間,促進肺泡通氣,增加氧氣交換效率,是緩解低血氧最直接且快速的措施。 為何其他選項錯: B. 通知呼吸治療師(Notify the respiratory therapist)是後續行動,應在初步穩定病人後進行。 D. 鼓勵深呼吸(Encourage deep breaths)雖然有益,但若病人本身呼吸功已增加或處於極度不適狀態,效果可能有限。高坐姿是更直接的物理性改善方法。 A. 檢查脈搏血氧儀探頭的放置(Check the placement of the pulse oximeter probe)是排除儀器讀數錯誤的步驟,應在考慮其他臨床干預前進行,但若探頭放置正確,則應立即採取改善通氣的措施。
A pulse oximetry reading of 88% indicates hypoxia, requiring immediate intervention to improve oxygenation. Placing the client in a high-Fowler’s position maximizes lung expansion and facilitates gas exchange more effectively than encouragement alone. While checking equipment is necessary to rule out error, ensuring adequate ventilation is the priority clinical action.