The method of sampling the amniotic fluid under ultrasound. You may work as an early amniocentesis for a period of 15-24 weeks with the recommendation of the greatest performance of 17-20 weeks. It belongs to the group of invasive diagnosis of genetic abnormalities of the fetus. Findings obtained after a few weeks in the form of the structure of chromosomes.
It can also be done as a late amniocentesis after 37 weeks of pregnancy in pregnant women with uncertain probable term birth, and to detect fetal maturity and to determine the optimum time for delivery. It is also working in pathological pregnancies for planning the optimum time to terminate a pregnancy on the basis of the findings obtained on the degree of ripeness of the fruit.