Quad Screen Test

The quad screen test is a maternal blood screening test that looks for four specific substances: AFP, hCG, Estriol, and Inhibin-A. AFP: alpha-fetoprotein is a protein that is produced by the fetus hCG: human chorionic gonadotropin is a hormone produced within the placenta Estriol: estriol is an estrogen produced by both the fetus and the … Continue reading Quad Screen Test