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出血发生于新生婴儿时期,为临床常见之现象,发生出血之原因很多,如血浆凝血素不足,先天性血小板减少,先天性白血病,各种原因之感染,缺氧,及过敏等,新生婴儿凝血机制紊乱,为新生婴儿时期出血最常见之原因,Creveld氏将新生婴儿凝血机制紊乱分为下列三类:1.新生婴儿生理的不成熟,暂时性缺乏某些凝血素而致出血,在早产婴儿发生出血更为显著,而持续时间亦较长。如凝血酶
Bleeding occurs in the newborn infancy, is a common clinical phenomenon, bleeding occurs for many reasons, such as lack of plasma hemagglutinin, congenital thrombocytopenia, congenital leukemia, various causes of infection, hypoxia, and allergies, neonatal coagulation Mechanism disorders, the most common cause of bleeding in newborn infants, Creveld ’s newborn baby clotting disorders are divided into the following three categories: 1. Newborn infants physiological immaturity, temporary lack of certain hemagglutinin and bleeding, premature infants Bleeding is more pronounced, while duration is longer. Such as thrombin