Tests that use DNA from mother’s blood to determine sex of fetus often effective
Tuesday, August 9, 2011 - 15:32
in Health & Medicine
As a noninvasive method of determining the sex of a fetus, tests using cell-free fetal DNA obtained from the mother's blood after 7 weeks gestation performed well, while urine-based tests appear to be unreliable, according to a review and analysis of previous studies, reported in the August 10 issue of JAMA.