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Prenatal diagnosis of invasive and noninvasive tests can be done in a way (NIPT), but because of the invasive methods have risks of infection and abortion, diagnosing non-invasive procedure increasing day by day. One of the widespread cell free fetal DNA in maternal blood test (cffDNA) that is increasing in clinical use has been drawing attention. The incidence of aneuploidy chromosomal anomaly of the kind in which all live births; Trisomy 21 (Down Syndrome) 1/800, trisomy 13 (Patau syndrome) 1 /10,000, trisomy 18 (Edwards syndrome) is a form of 1/6000. Because of the high mortality and morbidity, it is vital that congenital anomalies should be diagnosed in prenatal period. Aneuploidy testing for high-risk pregnant women after the 10th week of pregnancy in terms of the blood sample is taken and free fetal DNA in maternal plasma is based on the measurement of the relative amount. Knowledge of the current criteria for use by healthcare professionals in the field test will allow the exclusion of maternal and fetal risks. In this study, it is aimed to demonstrate current international approaches related to the positive and negative sides of non-invasive that is one of the prenatal diagnostic methods of cffDNA test. J Clin Exp Invest 2015; 6 (4): 414-41

The usage and current approaches of cell free fetal DNA (cffDNA) as a prenatal diagnostic method in fetal aneuploidy screening