<prompt> All of following statements are true regarding non-invasive prenatal screeningNIPT test except :Positive test need fuher confirmationEvaluates fetal blood taken by cordocentesis for fetal abnormalitiesHigh negative predictive valueUsed in screening for aneuploidies  <response>: Non-invasive prenatal screening tests: Used for Prenatal detection of chromosome abnormalities and reduce incidences of aneuploidies in high risk pregnancies. Pregnant womans blood is evaluated prenatal screening. Screening test is done usually after 10 weeks of gestation. Because it has high negative predictive values,for fuher confirmation with invasive methods like chorionic villus sampling, amniocentesis . 