Editing Prenatal testing (section)

==== Alpha-fetoprotein (AFP)/multiple marker test ====
The AFP test is often done in the second trimester using the serum from the maternal blood draw. This test looks at a specific protein that is formed in the liver of the fetus and released into the fluid contents of the womb, which is then absorbed into the mother's blood stream. Multiple determinations stem from the results of AFP testing. Genetically, it can expose chromosomal and neural defects.<ref name="www.hopkinsmedicine.org-2021">{{Cite web |date=August 8, 2021 |title=Common Tests During Pregnancy |url=https://www.hopkinsmedicine.org/health/wellness-and-prevention/common-tests-during-pregnancy |access-date=2023-12-01 |website=www.hopkinsmedicine.org |language=en}}</ref>