男性，16岁，因右侧腰部酸胀，劳累后加重就 诊，无发热和肾绞痛史。超声显示：右肾中度 积水。尿常规正常。进一步应先做何种检查

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32571' and id < 2588989 and id<>'2588989' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32571' and id > 2588989 and id<>'2588989' order by id asc limit 5