If you’re pregnant or thinking about pregnancy, you can choose to have prenatal genetic testing. There are two categories of prenatal genetic tests: screening tests and diagnostic tests. Watch this video to understand the different types of tests, learn when these tests can happen, and see how they are done.

Types of tests reviewed in this video include carrier screening, serum screening, cell-free DNA screening (also called noninvasive prenatal testing, or NIPT), chorionic villus sampling, and amniocentesis. Learn more about these tests.


Published: March 2023

Last reviewed: March 2023