護理師指導病人使用助行器，哪項觀察結果證實病人理解指導內容？
A nurse is teaching a client about the use of a walker. Which observation confirms the client understands the instruction?
- AThe client holds the walker handles with elbows locked病人鎖住手肘握住助行器把手
- BThe client pushes the walker forward, then walks into it✓ 正解病人將助行器向前推，然後走入其中
- CThe client keeps the walker at least 2 feet ahead病人將助行器保持在至少 2 英尺前方
- DThe client lifts the walker high above the floor病人將助行器舉起高於地面
核心概念：助行器（Walker）的正確使用技巧。 為何正確答案對： A. 使用助行器的正確步態是「先推助行器，再邁步入框架內」。將助行器向前推約 6-12 英吋，然後將患側腳（或較弱的腳）與助行器同時向前，最後再將健側腳跟上。這個動作能確保病人重心始終在支撐基礎內，維持穩定。 為何其他選項錯： B. 將助行器提起高於地面（Lift the walker high above the floor）會增加體力消耗，且可能使重心前移過多，增加跌倒風險。 C. 鎖定手肘（Elbows locked）會使手臂失去緩衝能力，不利於平衡，也可能增加關節壓力。應保持手肘微彎。 D. 將助行器放置在距離身體 2 英尺（約 60 公分）外，距離太遠可能導致病人身體過度前傾，重心不穩，增加跌倒風險。
Core concept: correct walker use technique. Why the correct answer is right: A. The correct gait pattern with a walker is to advance the walker first, then step into the frame. The walker is moved forward about 6–12 inches, then the affected (weaker) leg moves forward together with the walker, and finally the unaffected leg catches up. This sequence ensures the patient's center of gravity remains within the base of support, maintaining stability. Why the other options are wrong: B. Lifting the walker high above the floor increases energy expenditure and can shift the center of gravity too far forward, increasing fall risk. C. Locking the elbows eliminates the arms' shock-absorbing capacity, impairs balance, and may increase joint stress. The elbows should remain slightly flexed. D. Placing the walker 2 feet (about 60 cm) away from the body forces the patient to lean too far forward, destabilizing the center of gravity and increasing fall risk.