患儿男，10岁。多饮，尿量4000-5000ml/d1个月。査体：生长发育正常，皮肤干燥，小便常规阴性。尿比重为1.005，血渗透压300mmol/L,血钠145mmol/L。进一步的检査是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='28716' and id < 2342283 and id<>'2342283' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28716' and id > 2342283 and id<>'2342283' order by id asc limit 5