Prenatal diagnosis is generally used to seek an abnormality in a fetus when there is a greater than usual risk for a specific disorder. The risk must be for something that is detectable with available tests. This means that not all genetic disorders can be diagnosed. Concern for risk to fetus and mother, capability and availability of needed tests, and cost preclude routine testing for all pregnancies. As in all medical procedures, the benefit to be gained must be weighed against the hazards of the testing itself. Whether or not to undergo testing is a decision for the parents to make with the help of the obstetrician, and sometimes a medical geneticist and genetic counselor.
KeywordsDown Syndrome Amniotic Fluid Chromosome Abnormality Prenatal Diagnosis Neural Tube Defect
Unable to display preview. Download preview PDF.