患儿,男,3个月。因脱发4天,烦躁、哭闹、双眼上视半小时急诊入院。入院前1个月,患儿的父母为给患儿增加营养品,自购浓维生素AD滴剂口服(青岛海洋渔业公司生产),每次2—3滴,每日3次。用药25天后,患儿即开始脱发,此时未引起家长注意,继续服用上药。至入院前半小时,患儿出现烦躁不 Children, male, 3 months. Due to hair loss for 4 days, irritability, crying, half an hour on both eyes as emergency hospital admission. One month prior to admission, the parents of children were given nutrition supplements to their children, and oral administration of concentrated vitamin AD drops orally (produced by Qingdao Marine Fisheries Company) 2-3 times daily for 3 times. After 25 days of treatment, the child started to lose hair, at this time did not cause parents to pay attention, continue to take drugs. Half an hour before admission, children with irritability do not