患儿男,第1胎第1产,胎龄39周,因臀位剖宫产娩出,出生体重4300 g,否认宫内窘迫和生后窒息史。生后纳奶少,生后10 d出现反应差、拒奶,尿少,生后12 d入院。母孕期体健,无特殊用药史。体检:T 36℃,P 123次/min,R 26次/min,BP 127/66mm Hg,体重2900 g,反应差,全身皮肤苍白、弹性 Children male, the first child of the first production, gestational age 39 weeks, due to breech cesarean delivery, birth weight 4300 g, the statement of intrauterine distress and postpartum asphyxia history. After birth with less milk, 10d after birth, poor response, refused to milk, oliguria, 12 d after admission. Pregnant during pregnancy, no special medication history. Physical examination: T 36 ℃, P 123 times / min, R 26 times / min, BP 127/66 mm Hg, weight 2900 g, poor response, the whole body pale skin, elasticity