Prenatal screening tests
(examples: NIPT (non-invasive prenatal testing), such as the Harmony test, ultrasound, first trimester screening)
- Evaluate the chance for certain conditions in a pregnancy
- Pose no risk to the pregnancy
- Are followed by additional testing if a diagnosis is desired
- Performed as early as 10 weeks of pregnancy
- May indicate an increased chance for a condition in an unaffected pregnancy (“false positive”) or a low chance for a condition in an affected pregnancy (“false negative”)