triple screen

synonym: triple test
https://doi.org/10.1351/goldbook.11319

Measurement of maternal serum levels of alpha-fetoprotein, human chorionic gonadotropin, and estriol, usually in the second trimester of pregnancy, that can serve as an indicator of risk for certain fetal chromosomal abnormalities and neural tube defects.

Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 815 [Terms] [Paper]