患者，女性，46岁，右腰部胀痛不适3个月余。查体：站立位右肾下缘可达第3腰椎横突下2cm，为明确有无右肾下垂可能 首选的检查是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32573' and id < 2589246 and id<>'2589246' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32573' and id > 2589246 and id<>'2589246' order by id asc limit 5