護理師照護一位髖關節置換術後病人，哪項措施最能有效降低術後深部靜脈栓塞（DVT）的風險？
A nurse is caring for a client who is post-operative following a hip arthroplasty. Which action by the nurse will best reduce the risk of postoperative deep vein thrombosis (DVT)?
- AAdminister prophylactic antibiotics as scheduled按時給予預防性抗生素
- BApply sequential compression devices to the lower extremities✓ 正解在下肢應用順序性加壓裝置
- CEncourage the client to remain on bed rest to prevent hip dislocation鼓勵病人卧床休息以防止髖關節脫位
- DKeep the head of the bed elevated at 45 degrees將床頭抬高45度
DVT 預防核心在於增加下肢血液回流。間歇性加壓裝置（SCDs）透過機械性擠壓改善靜脈鬱積，是術後減少血栓形成的物理性標準措施。術後應鼓勵儘早下床活動，而非長期臥床。抗生素是用於預防感染，而非 DVT。抬高床頭對於血栓預防無直接臨床益處。
The core of DVT prevention is increasing venous return from the lower extremities. Sequential compression devices (SCDs) improve venous stasis through mechanical compression and are the standard physical measure for reducing postoperative thrombus formation. Postoperatively, early ambulation should be encouraged rather than prolonged bed rest. Antibiotics are used to prevent infection, not DVT. Elevating the head of the bed has no direct clinical benefit for thrombus prevention.
美國醫院常見使用自動化加壓裝置（SCDs），台灣早期多用彈性襪，近年大醫院已逐步推廣 SCDs 使用。