简述维生素D缺乏性佝偻病的病因。
【正确答案】：①日光照射不足②维生素D摄入不足③围生期维生素D不足④生长速度快：若维生素D供给不足，极易患佝偻病⑤疾病影响或药物作用：严重的肝肾等疾病可影响维生素D和钙、磷的吸收和利用；长期服用抗惊厥药可致维生素D分解为无活性的代谢产物而导致体内维生素D不足，导致佝偻病。
热门题目
- Passage ThreeSmall talk is like having loose change in your pock
- Speaker A: I want to take part in the school Talent Show.peaker
- 染织图案造型的基本形式有
- 屏气发作主要发生在儿童( )
- 开始关注同伴，社会性得到初步发展的幼儿属于（）
- 下列账户中，属于财务成果账户的是（ ）
- The points of contention in the violation of privacy rights have
- 硬通货
- Some representatives of US business, 【seething】 over what they v
- Nathaniel Hawthorne held an unceasing interest in the "interior
- A （） can be defined as a form to which affixes of any kind can b
- What are the basic ingredients of good manners? Certainly a stro
操作成功