一位有深部靜脈栓塞（DVT）病史病人，突發胸痛與呼吸困難。護理師的首要行動為何？
A client with a history of DVT (Deep Vein Thrombosis) suddenly develops chest pain and dyspnea. What is the nurse's priority?
- AStart oxygen therapy✓ 正解開始氧氣治療
- BEncourage deep breathing鼓勵深呼吸
- CObtain an ECG取得心電圖（ECG）
- DAdminister pain medication給予止痛藥物
深部靜脈栓塞（DVT）病人突發胸痛與呼吸困難，高度懷疑肺栓塞（Pulmonary Embolism, PE）。PE 是栓子阻塞肺動脈導致通氣與灌流不匹配，最迫切的威脅是嚴重缺氧。因此，護理師的首要任務是給予氧氣治療以緩解缺氧，隨後通知醫師並進行後續診斷（如 CT 掃描）。其他動作如給藥或心電圖皆在提供氧氣後進行。
A client with a history of deep vein thrombosis (DVT) who develops sudden chest pain and dyspnea is strongly suspected of having a pulmonary embolism (PE). PE occurs when an embolus obstructs the pulmonary artery, producing a mismatch between ventilation and perfusion; the most immediate threat is severe hypoxemia. The nurse's first priority is therefore to provide oxygen therapy to relieve hypoxemia, then notify the physician and arrange further diagnostic studies (such as a CT scan). Other actions, such as administering medication or obtaining an ECG, are performed after oxygen is provided.