— 降低風險 · MEDIUM · MCQ —
對於兩小時後要進行大手術的病人，護理師應優先關注哪項檢驗結果？
Which lab result should the nurse prioritize for a client scheduled for major surgery in two hours?
- ABlood urea nitrogen (BUN) of 20 mg/dL血液尿素氮 (BUN) 為 20 mg/dL
- BHemoglobin of 7.2 g/dL✓ 正解血紅素為 7.2 g/dL
- CSerum creatinine of 1.1 mg/dL血清肌酸酐為 1.1 mg/dL
- DWhite blood cell count of 11,000/mm³白血球計數為 11,000/mm³
— Explanation · 中文詳解 —
血紅素 7.2 g/dL 嚴重偏低（通常 <8 g/dL 需考慮輸血），會影響術中組織供氧及術後癒合。白血球 11,000 僅輕微偏高，可能因壓力引起；肌酸酐與 BUN 均在正常範圍。手術前必須確保足夠的含氧能力與循環量。
A hemoglobin level of 7.2 g/dL is critically low and poses a significant risk for inadequate tissue oxygenation during surgery, potentially necessitating a blood transfusion prior to the procedure. While other values like BUN, creatinine, and WBC are within acceptable or expected ranges, the low hemoglobin requires immediate attention to ensure patient safety.
✦ 台美臨床差異
美國醫院對術前 Hb 指標有嚴格切點，低於 7-8 通常會啟動輸血 Protocol；台灣臨床處理準則相似，由麻醉科與外科醫師共同決定。