A 24-year-old patient presents to OPD at 18 weeks of pregnancy with a previous history of a child with Down syndrome. The most appropriate is
"Tripple test gives risk ratio and for fuher confirmation amniocenteses has to be done" Tripple test (MSAFP, hCG, UE3) it is performed at 15-18 weeks while amniocenteses in performed at 16 weeks of pregnancy
Triple test
Chorionic villous biopsy
Amniocentesis
Cordocentesis
All India exam