1儿童的生理特点处于不同发育阶段儿童有不同的生理特点,根据小儿解剖生理及病理特点,可将小儿分为6期:(1)胎儿期:此期是胎儿发育十分重要的阶段,各组织器官处于形成阶段,许多药物可致胎儿的器官损害和胎儿死亡;(2)新生儿期:此期患病率和死亡率高;(3)婴儿期:此期生长发育最迅速,但容易患传染 1 Children’s physiological characteristics at different stages of development Children have different physiological characteristics, according to pediatric anatomy and physiology and pathological features, can be divided into 6 children: (1) Fetal period: This period is a very important stage of fetal development, the organization Organ is in the formation stage, many drugs can cause fetal organ damage and fetal death; (2) neonatal period: the prevalence and mortality in this period is high; (3) infancy: the rapid growth of this period, but prone to infection