The AFP test is a test that looks for three specific substances. This test is administered around Week 15
The triple test is a maternal blood screening test that looks for three specific substances: AFP, hCG, and Estriol.
AFP: alpha-fetoprotein is a protein that is normally 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 placenta
It is a non-invasive procedure done through a blood test with little to no risk to the mother or developing baby.
Information Provided by americanpregnancy.org