We conduct prenatal genetic testing to screen for or diagnose birth defects. The goal of these tests is to provide expectant parents with information to help them make informed choices and decisions. The two types of prenatal genetic tests are
Screening tests
Diagnostic tests
Screening tests don’t diagnose a birth defect, but they determine if the fetus is at high risk or low risk for certain conditions. These tests include first trimester screening, cystic fibrosis carrier screening, and modified sequential screening. Diagnostic tests diagnose certain fetal conditions with a high degree of accuracy. These include amniocentesis and CVS.