一位 50 歲病人擔心心臟疾病。下列哪項健康篩檢最重要需監控？

高血壓被稱為「隱形殺手」（Silent killer），因為它通常沒有明顯症狀，卻會導致冠心病、中風、腎衰竭等嚴重併發症。對於 50 歲以上的成人，定期監測血壓是篩檢心血管疾病最簡單、最經濟且最有效的措施。其餘實驗室檢測（如鐵、B12、BUN）雖有臨床價值，但針對心臟疾病的篩檢，血壓的控制與監測才是首要之務。

Hypertension is known as the "silent killer" because it usually produces no obvious symptoms yet leads to serious complications such as coronary artery disease, stroke, and renal failure. For adults over 50 years of age, routine blood pressure monitoring is the simplest, most economical, and most effective measure for screening cardiovascular disease. Although other laboratory tests (such as iron, B12, and BUN) have clinical value, blood pressure control and monitoring are the primary priority when screening for heart disease.