Ultrasonography (ultrasonography) became the ordinary procedure which is widely applied by doctors of different specialties long ago. It is used at inspection of pregnant women. Ultrasonography at pregnancy allows to control, how normally it proceeds whether there are no deviations in development of a fruit. But some future mothers and their relatives are concerned by a question: whether it is possible to undergo such inspection whether it is dangerous to the child.
How many times it is necessary to carry out ultrasonography at pregnancy
If pregnancy proceeds without any complications, ultrasonography it is possible to carry out 3-4 times. The first ultrasonography becomes at the approximate term of 10-12 weeks. It will be out with the purpose to specify pregnancy term, to define quantity of fruits in a uterus, the structure of a fruit and a condition of blood circulation between it and mother's organism. The doctor also pays attention to thickness of a cervical fold of a fruit (by result of measurements it is possible to judge whether is not present at future child of any congenital defects), to the place of attachment of a placenta, a condition of a tone of a uterus and amount of amniotic waters.
The second ultrasonography at pregnancy is carried out at the term from 20 to 22 weeks. The doctor defines whether the fruit size meets standards, whether there are no malformations, investigates a placenta and amniotic waters. Future mom can see on the screen of the movement of the kid, listen as his heart fights, and sometimes even to consider its mimicry. Also, if the pregnant woman wants, can tell her a sex of the child.
The third ultrasonography is carried out at the term from 30 to 32 weeks. Task of the doctor: to determine how mature the placenta is whether the uterine and placentary blood-groove what position is held by a fruit normally functions.
Just before childbirth it is possible to conduct one more ultrasonography. It allows to estimate the fruit weight, a condition of a placenta and also arrangement of an umbilical cord and degree of readiness of a uterus for patrimonial process.
If pregnancy proceeded with complications, ultrasonography can be carried out also with a bigger frequency, on doctor's orders.
Whether constitutes danger of ultrasonography at pregnancy
Among some pregnant women especially ignorant of medicine and the equipment, the prejudice as if ultrasonography can constitute danger to a fruit is widespread. But it is only rumors which are not confirmed with data of medical statistics. Nevertheless often it is not necessary to carry out such procedure, and its duration should not be too big. For example, in the west of the doctor try to reduce for each future mom ultrasonography frequency to minimum.