The overall process of extracting and amplifying the genetic material of an organism (in this case HIV ) and then testing for it with a PCR test is called Nucleic-acid Amplification Testing or NAT.

• 从提取，扩增某种生物（这里是HIV）的遗传物质到用PCR的技术来检测的全部过程称之为核扩增技术或简称为NAT。