患儿男，3天，主因气促、口周发青1天就诊。患儿为足月顺产，第一胎，家庭接生，早破水。生后持续20分钟青紫，经拍背击足抢救后哭声响亮。生后第三天出现气促，逐渐加重，并于哭闹时口周发青。父母非近亲结婚。母孕期无服药史和其他病史及X线、有害毒物接触史。查体：R：60次 Children male, 3 days, mainly due to shortness of breath, blue-eyed 1 day treatment. Children with full-term follow-up, the first child, the birth of a family, early broken water. Lasting for 20 minutes after birth bruising, after beating back to rescue crying loudly. On the third day after birth, she developed shortness of breath and gradually increased her odors and became blunted when she was crying. Parents marry non-relatives. Pregnancy without medication history and other medical history and X-ray, the history of exposure to toxicants. Physical examination: R: 60 times