患婴,女,39周孕臀助产婴,出生体重2.3kg,身长50cm,新生儿评分10、10、10。生后第二天出现呼吸困难,唇周发绀。该婴系第四胎第三产,同胞中第一胎女,第二胎男,均因疾病死亡,死因不详,第三胎人工流产。父38岁,体健,母36岁,孕中期感冒3～4次,每次持续2～3天,孕期常胸闷,孕3～4月接触农药乐果2～3次。查体:足月小样儿貌,体温不升,前囟1×1cm,平软,唇、口周发绀,呼吸困难,明显吸 Infant, female, 39 weeks pregnant hip births, birth weight 2.3kg, length 50cm, neonatal score 10,10,10. Breathing difficulties the next day after birth, cyanosis lip weeks. The third birth of the fourth child of the baby, fellow first wife and second child, died of illness, the cause of death is unknown, the third abortion. Father 38 years old, body health, mother 36 years old, middle-trimester influenza 3 to 4 times, each lasting 2 to 3 days, often chest tightness during pregnancy, pregnancy 3 to 4 months of pesticides and dimethoate 2 or 3 times. Physical examination: full-term baby appearance, body temperature does not rise, the anterior fontanelle 1 × 1cm, soft, lip, mouth week cyanosis, dyspnea, obvious suction