This is a protein made by the placenta in early pregnancy. Pregnancy-associated plasma protein screening (PAPP-A). These tests measure 2 substances found in the blood of all pregnant women:
Nuchal translucency screening uses an ultrasound test to check the area at the back of the fetal neck for extra fluid or thickening. Ultrasound test for fetal nuchal translucency (NT) Screening tests may be used alone or with other tests.įirst trimester screening has 3 parts. It can help find out the risk that the fetus has certain birth defects. First trimester prenatal screening testsįirst trimester screening is a combination of fetal ultrasound and maternal blood testing. These are some of the more common tests done during pregnancy.
