患儿，男，G1P1，38＋4周孕，阴道分娩，APgAr评分中度青紫窒息。出生后即从口咽部吸出大量血性液体，其中混有米粒大小血凝块。羊水血性混有血凝块，胎盘边缘有一约5cm裂口，被陈旧皿凝块覆盖。出生后8小时首次排便即为暗红色血便，尿布亦染呈红色，以后共排血便9次，颜色逐渐 Children, male, G1P1, 38 +4 weeks pregnant, vaginal delivery, APgAr score moderate cyanosis asphyxia. A large amount of bloody fluid is aspirated from the oropharynx after birth, and there is a mixture of cereal-sized blood clots. Bloody mixed amniotic fluid clot, the edge of the placenta has about 5cm gap, clothed with old clot. The first defecation 8 hours after birth is dark red bloody stool, diapers are also stained red, after a total of 9 times the row of blood, the color gradually