Often increased
3- Alpha-Fetoprotein (Amniotic Fluid, Following Amniocentesis at 12 to 16 Weeks)Reference range exampleAdult ( > 16y), Female: 194–197 pmol/LLinked diagnostic tests1Alpha-Fetoprotein (AFP, Amniotic Fluid Following Amniocentesis)
- Alpha-Fetoprotein (Maternal Serum, Pregnancy 15-18 Weeks)Reference range exampleAdult ( > 16y), Female: 12–155 ng/mLLinked diagnostic tests1Alpha-Fetoprotein (AFP, Serum AFP
- Fetal Nuchal Thickness on Ultrasound (Pregnancy Weeks 10 to 14)Reference range exampleAdult ( > 16y), Female: 2.18–2.5Linked diagnostic tests1Fetal Nuchal Translucency (FNT on Ultrasound)