Benefits
Determine the sex of the baby before birth.
Early detection of chromosomal problems.
Prediction of fetal lung maturity.
Detection of Rh incompatibility — a condition where Rh-negative blood in the mother treats Rh-positive blood of the baby as a foreign substance and creates antibodies to destroy them.
Detection of infections caused by abnormal white blood cell count, bacteria shown by a Gram stain, or a decreased glucose level.
Success Rate: 99.94%.
Risks
May cause fetal injury if test is done before week 15.
May cause miscarriage.
Ethnic Issues
Abortion if abnormalities are found.
Abortion based on sex of the baby.