Ultrasound during pregnancy. At what periods do ultrasound do during pregnancy? Fruit ultrasound tables

How often do you need to do screening during pregnancy? Is there any harm from ultrasound?

The first ultrasound during pregnancy is for what period? How long is the first ultrasound?

Modern equipment allows you to see the child a few days after the delay in menstruation. Therefore, theoretically, an ultrasound is prescribed in the fifth week of the alleged pregnancy. But most often, doctors try to “delay” the moment of the first study before a period of 12 weeks.

At this time, the doctor can not only see the presence/absence of a fetal egg, but also install:

• the presence of an embryo in it
• the viability of the fetus
• the presence of malformations

At what period does the ultrasound determine the gender of the child?

At 12 weeks, the doctor will most likely be able to call you the gender of the baby. Although its definition also depends on the position in which the embryo is currently located. The equipment allows you to see the brain, intestines, bladder and other large fruit structures.

Is there a dangerous ultrasound in the early stages of pregnancy?

Doctors assure that all the ultrasound they prescribe are absolutely harmless. But this may not always be true. Make sure that the study assigned to you is not too early.

“I do not advise in the early stages of pregnancy to run on ultrasound and laboratories,” explains Elena Berezovskaya, a research doctor in the field of obstetrics and gynecology. -On the second or third week you cannot diagnose it. This is excess stress, unnecessary irritation of the uterus sensors, pressure on the stomach or vagina. A pregnancy test and hCG are the best ways. Ultrasound has its own errors. We, obstetrician-gynecologists, do not recommend doing them too often in the early stages. Ultrasonic waves heat the fabrics, and most of all this relate to the tissues that have a liquid inside. And this, first of all, is the brain of the embryo in the early stages. Everywhere you will be told that ultrasound is absolutely safe. Yes it is. But only for the body of a woman, her uterus and fetus, older than 16 weeks. ”

Will an early pregnancy be determined for ultrasound?

Now doctors can diagnose pregnancy a few hours after conception. Of course, in a regular clinic you are unlikely to be offered such a test. But theoretically this is possible.

Why do not doctors give a wide move to these technologies? It turns out that the early detection of pregnancy is unprofitable. There are rather frightening statistics. 80% of pregnancies are lost in the early stages at a time when we do not even suspect them. For a woman, it looks like ordinary menstruation.

Why do not doctors want to use preserving therapy? It turns out that natural selection works. The body gets rid of this burden if it is not able to endure it or if the fetus is defective.

Thus, this is the smallest evil. Otherwise, we would have to lose pregnancy or get rid of the embryo in the late stages, and this is already more harm to health.

How much ultrasound do you need to do during pregnancy?

The minimum amount of ultrasound in the normal course of pregnancy is three. They are not done to diagnose any problems. The diagnostic test is more specific. And this study simply gives a overall picture.

It allows the doctor and the future mother to make sure that pregnancy develops as it should. In case of doubt, the doctor prescribes additional procedures.

When is the ultrasound during pregnancy in trimester?

The study of ultrasound is carried out three times throughout pregnancy. Each trimester corresponds to one screening. Sometimes ultrasound has to be carried out more often. For example, if a woman has poor blood flow in the placenta.

The doctor prescribes her drugs to improve the blood supply to the baby. But the results must be monitored in dynamics. Then you have to go on ultrasound more often.

At a time after 12 weeks, the embryo is unlikely to harm. The doctor always evaluates the ratio of benefits from the information received and potential danger. Therefore, do not neglect his recommendations. But it is impossible to abuse ultrasound procedures without a doctor’s prescription.

At what period of pregnancy is the second ultrasound do?

The second ultrasound is done for a period of 20-24 weeks. This time has been chosen because the baby is already quite large, and the doctor can consider his anatomy much more.

The ultrasound specialist will be able to see the profile of the face, bones of the nose, the umbilical ring, the volume of the head and abdomen. In addition, the doctor will conduct the so -called dopplerography.

This study, which allows you to determine whether the blood placenta and the baby are supplied with blood. Also, during an ultrasound, the doctor will measure the amount of amniotic fluid.

At what period of pregnancy do the third ultrasound do?

The deadlines for the last planned screening-32-36 weeks. During this study, the doctor studies not only the condition of the fetus, but also his position in the uterus, the presentation of the head or pelvis down, as well as entangling the baby's cord.

All these data are useful to obstetrician taking birth. After all, this process can begin suddenly, and there will be no time for additional ultrasound. But the data identified on the last screening cannot be considered final.

It often happens that the kids, having felt the approach of childbirth, change their presentation from the pelvic to the head in a few hours.

The size of the fetus for weeks for ultrasound. Fruit ultrasound tables. Fetal ultrasound norms

Each baby develops individually. But doctors still have approximate statistics. Based on these tables, they make sure that there is no deviation from the norm. The delay in intrauterine development may have several reasons:

• the age of the mother
• bad habits
• intrauterine infections
• chromosomal abnormalities

Your child needs to go a difficult path from one cage to a little man. We can track several stages.

1. 3 weeks. Now the future embryo looks like a small bubble with liquid. In size, it is comparable to a poppy grain
2. 5 week. This is a period when most mothers begin to suspect pregnancy. At this point, the fetus reaches the size of the sunflower seed
3. 12 week. This is the moment of the first screening. The doctor can already distinguish the baby well, because in size it is comparable to the pea of \u200b\u200bpeas. Its weight is 15 g
4. 20 week. The time of the second screening. Now your baby can be seen not only on ultrasound. Most likely, your stomach has already increased, it can be seen with the naked eye. In size, the embryo now resembles a small squirrel. Its weight is 283-185 g
5. 32 weeks. By the time of the third screening, the baby begins to feel how her baby has grown up. Many get tired of short walking, complain of back pain, fatigue in the legs. And everything from the fact that the fetus weighs at least 1700 g.

• It should be understood that the tables represent average indicators. Suppose you and your husband have never been tall. And now the doctor puts a delay in development due to the fact that his growth does not correspond to the graphics
• Discuss your heredity with him. Tell us that there are many stunted people among your relatives. Perhaps this will save you from unnecessary drugs and incorrect diagnoses
• So, during pregnancy, a woman passes at least three studies by ultrasound. In the first two months of pregnancy, this method is desirable not to use. With a long period of research, they are done as prescribed by a doctor
• As a rule, doctors send women to screening once in the first, second and third trimesters. Do not abuse this procedure, but do not ignore your doctor's prescription

Video: DR. Elena Berezovskaya - about prenatal genetic screening