案例：患者，男，48岁。间歇性浮肿10余年，伴恶心、呕吐1周。血压155/110mmHg。血常规Hb80g/L。尿常规尿蛋白（++)，颗粒管型2-3/HP。血Cr485μmol/L。为了判断上述患者是否为慢性肾功能不全应首选的检查是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='10492' and id < 837337 and id<>'837337' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='10492' and id > 837337 and id<>'837337' order by id asc limit 5