In the time periods from the fifteenth to the twentieth weeks of gestation, pregnant women are normally recommended to undergo a blood analysis testing known as the multiple marker test. It is occasionally known as the triple or quad screen test depending on the kind of measurement being intended.
Why is it is carried out?
This blood test is conducted for measuring placental production of the amounts of hCG or human chorionic gonadotropin, estriol and at times inhibin-A. The amount of AFP or alpha-fetoprotein production by the foetus is also checked. By checking these levels, the doctors are able to detect whether the unborn child is at any risk of developing particular congenital anomalies inclusive of neural tube flaws (e.g. spina bifida) [...]