Description
Due to limitations in the application of calculation methods for determining the risk of congenital fetal anomalies, it is impossible to calculate such risks for multiple pregnancies with 3 or more fetuses.
The optimal timing for the study is 16-18 weeks of pregnancy. It is necessary to fill out a questionnaire and attach a photocopy of the ultrasound performed at 16-18 weeks of pregnancy.
Blood can be drawn no earlier than 3 hours after a meal or in the morning on an empty stomach (while drinking clean water as usual is allowed).
Study composition:
- Beta-subunit of human chorionic gonadotropin (beta-hCG)
- Alpha-fetoprotein (alpha-FP)
- Free estriol
Screening results cannot serve as criteria for establishing a diagnosis.
Period of execution
By 00:00 the next day. The specified time does not include the day of biomaterial collection
Biomaterial type