患儿女,生后8d,因鼻塞伴奶量减少1d入院。患儿系第6胎第2产,胎龄41周,顺产,出生体重3000g,无窒息史,母乳喂养,吸吮有力。否认家族遗传病史。母亲曾人工流产4次,患儿胞兄生后7d因抽搐、昏迷在当地医院死亡,当时诊断VitK缺乏颅内出血。患儿无发热,无咳嗽、气促,无呕吐、腹泻,无尖 Children with children, 8d after birth, due to decreased nasal congestion with 1d admission. The second child of the 6th child fetus, gestational age 41 weeks, birth, birth weight 3000g, no history of asphyxia, breastfeeding, sucking force. Denied family history of genetic disease. Mother had abortion 4 times, 7 days after the cyst in children with convulsions, coma died in the local hospital, was diagnosed with lack of intracranial hemorrhage VitK. Children without fever, no cough, shortness of breath, no vomiting, diarrhea, tipless