老年慢性阻塞性肺疾病 (chronicobstructivepulmonarydisease,COPD)合并Ⅱ型呼吸衰竭患者在心肺功能失代偿期常常伴有肾功能损害 ,如何早期发现 ,是临床非常关注的问题。我们采用生化及放射免疫法检测 2 7例老年COPD并Ⅱ型呼吸衰竭患者的血、尿 β2 微球蛋白 (β2 MG)、血尿 Chronic obstructive pulmonary disease (COPD) with type II respiratory failure in patients with cardiopulmonary decompensation often associated with renal damage, how early detection, is a very clinical concern. We used biochemical and radioimmunoassay to detect the blood and urinary β2 microglobulin (β2 MG), hematuria in 27 elderly patients with COPD and type Ⅱ respiratory failure