心導管術後病人，哪項護理措施對預防併發症最重要？
Which nursing intervention is crucial for a client post-cardiac catheterization to prevent complications?
- AEncourage deep breathing exercises鼓勵深呼吸運動
- BApply warm compresses to the chest對胸部進行熱敷
- CMonitor the insertion site for bleeding✓ 正解監測插入部位是否有出血
- DMaintain a low-fat diet維持低脂飲食
心導管術後最常見且最致命的急性併發症是穿刺部位（通常是股動脈）出血或形成血腫。由於導管插入處動脈壓力高，術後護理的首要任務是監測出血徵象（如敷料滲血、穿刺處腫脹或瘀青擴大、遠端脈搏減弱）。其他措施雖有助於預防術後常見的肺部併發症（深呼吸）或長期健康（飲食），但在術後即刻護理中，出血評估屬於 ABC（Airway, Breathing, Circulation）中的 Circulation，優先級最高。
The most common and most lethal acute complication after cardiac catheterization is bleeding or hematoma formation at the puncture site (usually the femoral artery). Because of the high arterial pressure where the catheter is inserted, the first priority of postoperative care is to monitor for signs of bleeding (such as bleeding through the dressing, swelling or expanding bruising at the puncture site, or diminished distal pulses). The other measures, although helpful for preventing common postoperative pulmonary complications (deep breathing) or for long-term health (diet), in the immediate postoperative period are secondary to bleeding assessment, which falls under Circulation in the ABC priority (Airway, Breathing, Circulation) and has the highest priority.