Ultrasound at week 7 of pregnancy: features
One of the most difficult and simultaneously expected events in the life of any woman is pregnancy. All nine months the future mummy carries her baby, talks to him, gets used to her mutated body, and also follows the recommendations of the doctor. The most frequent procedure that allows you to determine the very fact of pregnancy and possible complications is ultrasound. Is it dangerous to do it at 6-8 weeks? How is ultrasound done at week 7?
What is "obstetric weeks"
To begin with, it is necessary to clarify what constitutes obstetric weeks and how they differ from the usual ones. When discussing the obstetrical week, we mean the period of pregnancy, the counting of which began on the first day of the last month. In the second case, the count begins from the day of conception. The obstetric week, as a rule, is exactly 14 days longer than the initial period. For example, six obstetric weeks correspond to four normal or embryonic weeks.
Features of the embryo at week 6
Like any other, the sixth obstetric week has its own characteristics. It is at this time the size of your future baby is only 2-4 mm, which corresponds to a small peach-pea. At the same time, a small growing heart starts to work actively, the beat of which is still too low to be heard with a stethoscope. However, it can be seen on the ultrasound machine, where it will be displayed in the form of a small pulsating point.
What is ultrasound done at week 6?
Ultrasound at 6-7 weeks of pregnancy is done to determine the very fact of an "interesting situation". Such a survey allows you to catch the heartbeat and outlines of the fetus, as well as to clarify its location. In particular, when using an ultrasonic device at an early stage, it is possible to see whether the pregnancy is taking place according to a standard schedule, or a malfunction occurred during conception, and the seed entered the fallopian tube (with ectopic pregnancy).
Is it possible to abandon ultrasound at 6 weeks
Do or do not have an ultrasound, this decision is purely individual. As a rule, he is prescribed for suspected pregnancy. In the case of a positive result, the future mother is put on medical records. From this moment she is obliged to listen to the advice and recommendations of her doctor, to take tests and come to a routine examination.
In addition, it is worth doing an ultrasound in the event that you have certain ailments, suspicious discharge from the perineal zones, there were vomiting, and so on. About what purpose ultrasound is prescribed for the 7th week of pregnancy, we will tell further.
Embryo development at week 7
The seventh obstetric week corresponds to the fifth embryonic week. During this period, the growth of the baby is already 5-13 mm, and weight - 0.8 g. The tiny creature in this case acquires the size of a small white string bean. He still has a small tail, and apparently the embryo is not too similar to the future child.
However, he already stretched his head, and on the pictures you can already discern the place where his neck will be. Also, his limbs have somewhat extended, but there is still no division of fingers. Why make an ultrasound of the embryo at week 7 of pregnancy?
For what it is necessary to do or make US on 7 week
At this time, a gynecologist can see a threat for miscarriage or a dead pregnancy. In addition, it is in the seventh week that the existing uterine tone can be assessed, as well as the presence of uterine myoma. At this time, the ovaries are examined with an estimate of their size and condition. Then it's realistic to calculate the future date for delivery.
As in the previous case, the ultrasound examination is voluntary. Only a doctor can prescribe an ultrasound at week 7 of pregnancy. And he does this usually when there is a suspicion of any deviation.
Often it is at this time that women learn that they are pregnant, and for some of them this is not a pleasant surprise. Therefore, at these dates, as many experts say, a woman should carefully think about whether it is worth preserving her future child.
Pregnancy 7 weeks: Ultrasonography
A very important point, which doctors pay attention to, is the heartbeat of the fetus. It is on how much it corresponds to the established norms, and the medical verdict will depend. In particular, doctors are interested in three main evaluation criteria:
- the limiting frequency of cardiac fluctuations;
- rhythm and periodicity of heartbeat;
- nature of the abbreviations.
For example, when appointing ultrasound on the 7th obstetric week of pregnancy, doctors look at the frequency of beats per minute. So, in a fetus at 6-8 weeks, a small heart beats at a frequency of no more than 110-130 beats per minute. At a period of 9-12 weeks, the beat frequency ranges from 170-190 beats, and at 13-40 weeks - 140-160 beats per minute.
In case if the given value will be above norm or rate the probability of presence of a tachycardia is high. At a heartbeat frequency below the norm, there is a risk of bradycardia. In addition, with the normal development of the fetus, its heartbeat should be bright, clear and carried out at regular intervals.
If these abnormalities are detected, a thorough examination with subsequent administration of treatment is recommended. And, at first, ultrasound is done at week 7 of pregnancy (how to do it, we'll tell you later), a diagnosis is made, and then treatment is prescribed.
How is ultrasound done?
When getting directions for an ultrasound examination, many women are frankly frightened. This is due to ignorance of the process itself and its essence. First you should come to the doctor's office, according to the appointed time. Then you will be asked to lie down on the couch and bare your belly.
After that, a special gel is put on it, which is gently smeared on the surface of the skin in the area of the pre-fringe zone. Simultaneously, the specialist connects the ultrasound machine, starts to drive a special sensor in the place of lubrication and displays the data on the monitor screen. As a result of this action, the physician can assess the following points:
- condition and development of the fetal egg;
- the condition and size of the uterus;
- gestational age;
- condition of the ovaries.
Such an examination is most often performed at the initial stages and with the normal course of pregnancy. In the case if a more thorough examination is required, then another sensor is in operation - for a vaginal examination. When working with him, a specialist, as a rule, puts on him a usual disposable condom and then introduces him into the vagina of a pregnant woman. He will see all the information he needs on the monitor screen. As you can see, nothing strange. And whether to do or make US on 7 week of pregnancy or not, to solve to you.
What should I do before I visit a doctor?
According to the requirements of doctors, about an hour or two before the examination of ultrasound should drink 1.5-2 liters of water. Accordingly, go to the hospital before the doctor's appointed time. It is recommended that you take a small towel with which you will wipe the gel after the procedure, as well as a condom (in case of a vaginal examination) and an obstetric disposable diaper.
What are the concerns about the survey?
Fears associated with ultrasound are often attributed to the fear of irradiation of the unborn child. According to experts, there is nothing dangerous here. And there is a lot of evidence for this statement. So, the main argument for the safety of the ultrasound machine is the presence in it of special sensors capable of fixing and limiting the frequency of irradiation, so that waves at this level will not harm the developing baby.
In addition, numerous studies of foreign and domestic specialists speak of the safety of ultrasound devices.
How the fetus develops at week 8
Already in the eighth week the future child has finally formed the nervous system and brain. Its weight reaches three grams, and height - 14-20 mm. The baby's cilia begin to grow, fingers are formed, and the folds in the elbows and hands become mobile and flexible. The heart increases in size and starts to beat at a speed of 150 beats per minute.
If you make ultrasound at 7-8 weeks of pregnancy, you can see the shape of the face: ears, lips, nose. Sometimes the pictures show a hand, which the child as if sends his parents greetings.
What is ultrasound used for at week 8?
The appointment of an ultrasound examination at the eighth week occurs in the event of possible abnormalities and abnormalities in pregnancy. For example, a woman in labor had certain pain sensations, which at this stage should not be.
If she has bloody or black and yellow discharge, which have a pronounced unpleasant odor. In addition, the cause of the examination may be a poor hearing of the heartbeat of the baby. Sending to ultrasound at 7 weeks of pregnancy or 8 in this case will reduce the risk of fetal fading or detect this problem.
What is ultrasound as planned?
In medical terminology, there is such a thing as a graph of the passage of ultrasound. What does this mean? This means that with the normal course of pregnancy of the future parturient woman it is necessary to make only three ultrasound:
Moreover, during the first examination, the woman in attendance is examined for pregnancy, the normality of fetal development is studied in order to avoid deviations. It measures the thickness of the collar space (TB) with the purpose of timely detection of a chromosomal abnormality (Down's syndrome).
During the second examination, you can determine the sex of the future baby. In addition, the doctor examines the placenta, studying blood flow, structure, location and other indicators, which allows him to see if there is a danger of early detachment of the placenta or not.
The third visit to the doctor-ultrasound will help to calculate the exact timing of childbirth and again to examine the placenta in time to detect its possible presentation and deviation from the norm.
In a word, it is thanks to ultrasound that you can see deviations in time and have time to neutralize them until the baby's birth.