患儿,男,出生34小时,因呼吸急促、频繁呕吐、生后34小时未排胎便入院。患儿系第一胎第一产,母孕39周顺产,否认有产伤窒息史,生后已喂奶,排尿正常,未排胎便。呕吐频繁,呕吐物为白色奶液,并伴呼吸急促、面色苍白。患儿父母体健,非近亲结婚, Children, male, born 34 hours, due to shortness of breath, frequent vomiting, 34 hours after birth were not discharged into the hospital row. The first birth of children with first-born fetus, 39 gestational births, rejected the history of births and asphyxia, has been feeding after birth, normal urination, no row of stool. Frequent vomiting, vomit white milk, and accompanied by shortness of breath, pale. Children with healthy parents, non-relatives get married,