一位接受全髖關節置換術後的病人，下列哪項措施對於預防人工關節脫位最為優先？
A nurse is caring for a client who is post-operative following a total hip arthroplasty. Which action is the priority to prevent dislocation?
- AUse an abductor pillow while the client is in bed✓ 正解病人在床上時使用外展枕
- BEncourage the client to bend forward to reach items鼓勵病人彎腰撿拾物品
- CHave the client sit on a low stool to improve circulation讓病人坐在矮凳上以促進血液循環
- DTeach the client to cross legs while sitting教導病人在坐姿時交叉雙腿
核心概念：全髖關節置換術（Total Hip Arthroplasty, THA）術後照護，預防人工關節脫位。 為何正確答案對： A. 外展枕（Abductor pillow）是一種放置在大腿間的楔形墊，能幫助維持髖關節處於外展（Abduction）位置，這是預防人工髖關節脫位的重要措施，特別是避免內收（Adduction）和過度屈曲（Flexion）。 為何其他選項錯： B. 彎腰（Bend forward）以拿取物品，會導致髖關節屈曲超過 90 度，增加脫位風險，應絕對避免。 C. 交叉雙腿（Cross legs）會使髖關節內收（Adduction），是導致脫位的常見原因之一，應避免。 D. 坐在低凳子上（Sit on a low stool）會迫使髖關節過度屈曲，增加脫位風險，且低矮的椅子不利於起身，反而增加跌倒風險。
Core concept: postoperative care of the client following total hip arthroplasty (THA) and prevention of prosthetic joint dislocation. Why the correct answer is correct: A. An abductor pillow is a wedge-shaped pad placed between the thighs to help maintain the hip joint in abduction. It is an important measure to prevent dislocation of the prosthetic hip, particularly by avoiding adduction and excessive flexion. Why the other options are incorrect: B. Bending forward to reach items causes hip flexion beyond 90 degrees, increasing the risk of dislocation, and must be strictly avoided. C. Crossing the legs results in adduction of the hip joint, which is one of the common causes of dislocation and should be avoided. D. Sitting on a low stool forces excessive flexion of the hip joint, increasing the risk of dislocation; a low chair also makes standing up difficult and increases the risk of falls.