The extensive research done by our testing laboratory using its exclusive DNA technology in developing the prenatal gender test has been essentially confirmed by recently published studies done at various medical schools. The conclusion of the studies was that in 6,500 tests performed on pregnant women the prenatal gender determination was 99.8% accurate.

Non-invasive procedures

The gender of a fetus can be determined with 100% accuracy after approximately 7 weeks of gestation (10 weeks after last missed period). At this stage of pregnancy, the maternal blood carries sufficient fetal DNA for identification of the gender of the fetus.

The DNA is obtained by using a small blood sample taken from the mothers arm using the vacutainer tube we supply. The sample can be easily taken at any medical lab in a few minutes, and is stabilized in the tube for returning to our testing facility. Results are available in 7 business days.

The genetic non-invasive gender determination test has evolved from work done in 1997 when Lo et al first described the presence of fetal DNA in material plasma and serum. The cell free fetal DNA offered an important path for non-invasive prenatal gender determination. Based on a PCR assay, Viaguard has determined that the concentration of fetal DNA in maternal plasma in the first trimester and particularly after 7 weeks of gestation was about 3.4% and it is estimated that a mean of 24.4 copies of fetal DNA circulates per ml. of maternal plasma. At this level there is almost 100% precision in identifying the Y chromosome and establishing fetal gender.

You may order your Prenatal Gender Test by using the order form on this page, or by calling one of our Genetic Consultants at 1-844-BIO-GENE (246-4363).