The nurse is planning a genetic counseling with the parents of a child with Down syndrome, which of the following would the nurse include as the primary role of the genetic team when working with a family

A．Preparing the parents psychologically for the birth of a defective child.

B．Prescribing birth control or abortion measures for the parents as needed.

C．Providing parents with information about the risks of birth defects.

D．Reporting the findings of chromosome analysis of the amniotic cells.

男性，25岁。因摔伤造成右胫骨闭合性骨折，2小时后来院就诊。给予闭合复位、石膏夹板外固定，起初疼痛不明显，后逐渐加重。应首先采取（）

A.给予镇痛药物

B.拆除石膏夹板，重新包扎固定

C.静滴抗生素消炎

D.使用扩血管药物缓解血管痉挛

E.立即行筋膜间室切开减压