Currently, this test is reserved for women with added risk factors for chromosome abnormalities, such as age > or = to 35, previous child with chromosome abnormality, abnormal screening test or ultrasound abnormalities.
Okwangoku, olu vavanyo lulungiselelwe amabhinqa anomngcipheko owongezelelekileyo weengxaki zeekhromozomi ezifana neminyaka yobudala > okanye = kwama-35, anomntwana okhe waneengxaki zeekhrmozomi, anovavanyo olubonise ingxaki okanye uhlolo lwe-ultrasound olubonise iingxaki.