![PDF) Second-trimester Maternal Serum Quadruple Test for Down Syndrome Screening: A Taiwanese Population-based Study PDF) Second-trimester Maternal Serum Quadruple Test for Down Syndrome Screening: A Taiwanese Population-based Study](https://www.researchgate.net/profile/Chien-Nan-Lee/publication/44595752/figure/tbl1/AS:601611479031839@1520446762393/Down-syndrome-cases_Q320.jpg)
PDF) Second-trimester Maternal Serum Quadruple Test for Down Syndrome Screening: A Taiwanese Population-based Study
Genes2Me - Quadruple marker is a simple blood test performed during the second trimester (15-20 weeks) of #pregnancy to detect the risk of chromosomal abnormalities or congenital disabilities in the developing baby. #
![Hi I am 14 weeks pregnant, i got my NT scan and dual marker done last month in reports it shows low risk but for trisomy 21 it show little grey area. Hi I am 14 weeks pregnant, i got my NT scan and dual marker done last month in reports it shows low risk but for trisomy 21 it show little grey area.](https://app-us-east-1.t-cdn.net/5ee875e3e409ee03c308f9a4/questions/6244a59da08ff9239c1aa6f8/6244a59da08ff9239c1aa6f8_51769.jpg)