During pregnancy, doctors are watching the future mother and baby. In order not to miss dangerous diseases that may appear at the fetus, experts send pregnant women in every trimester for the passage of screening. This is an exciting process, but the diagnosis is better to pass.
The aim of the diagnosis is to analyze the state of a pregnant woman, identifying malformations, physiological deviations from a child who could be missed on the first screening or it was impossible to identify in the early stages. Also, the doctor is set to confirm or refute the diagnoses set after the previous survey.
As a rule, the future mother is sent to ultrasonic or combined screening. But a pregnant woman, if desired, can undergo a study in different places. For example, in women's consultation to make ultrasound diagnostics, and in a private clinic to rent a biochemical blood test. On the screening of the 2nd trimester, the biochemical blood test may be assigned by special testimony
both times when I was waiting for a child, we were sent to the regional center to the regional center. There were an ultrasound and took blood on biochemical analysis (to identify pathologies). The second screening took place in the female consultation in the city, in which I live, and from the appointments there were only ultrasound and blood tests: common, HIV, RW, hepatitis. Doctors did not offer me a biochemical analysis. Perhaps because I did not enter the risk group and the results of the first screensions were normal.
The examination under consideration is carried out in the interval between 16 and 20 weeks of pregnancy, and it consists of two stages: ultrasound and biochemical screening. In the absence of any deviations on the ultrasound of a triple test, it is often not prescribed.
In general, the screening of the second trimester of pregnancy is the voluntary procedure. In some cases, the results may be false positive, which provokes stress and negatively affects the health of the mother.
In the second trimester, a pregnant woman is prescribed repeated screening confirming or refuting data that is obtained in the first comprehensive study. This period is the most suitable for the diagnosis of the hormonal level of the fetus. The data obtained enabled its development. This article describes in detail what is the norms of screening 2 trimester on ultrasound, blood test.
The second screening survey is carried out in the region of 16-20 weeks of pregnancy. These times are not accidental. Since the fetus has grown, he has already laid all the basic systems important for life life. A study conducted up to 12 weeks refers to the first screening. The diagnosis is a certain purpose of identifying the anomalies of systems, their organs, the detection of chromosomal disorders. In the presence of serious deviations, doctors can recommend premature labor.
Screening of the second trimester - a comprehensive study that includes ultrasound diagnosis, a biochemical test. If a woman easily transfers pregnancy, the baby develops in accordance with the norm, then, in this situation, the doctor is not assigned to conduct a second testing.
With the second screening, the second ultrasound is appointed. During which the doctor turns out information on how many fruit women, that is, whether pregnancy is multiply, the term of pregnancy is specified. Sometimes it is different, which determined the first result. The doctor also reports the estimated date of birth and, if the woman is desired, can say half a child.
As a result, the doctor issues a conclusion about the state of the fetus, the presence of violations in development. If deviations from the norm on the ultrasound are revealed, then the woman is recommended to undergo a study with Doppler. This diagnosis will allow you to evaluate the patency of blood vessels, uterine, placental, arterial blood flow. As well as the degree of saturation of the baby's cerebral oxygen at a given period of time.
Research results allow a doctor to determine important indicators in the development of the fetus characteristic of the 2nd trimester of pregnancy. However, the final decision takes the doctor individually for each patient.
Women who have been appointed screening on the 2nd trimester of pregnancy always experience an experience, especially when it comes to possible pathologies. Consulting the doctor, women often ask doctors questions, answer which we will try to set out.
Answer: If suspected pathology, it is necessary. When the ultrasound results show normal indicators, there are no deviations from the norm, the pregnancy proceeds well, the analysis may not be carried out.
Screening of the 2nd trimester is one of the important research methods that allow you to determine the anomalies in the development of the fetus. With bad results, defects or defects in the development of the fetus, a pregnancy interruption is recommended for medical indicators.
The main task of screening the second trimester is to "cut out" moms, for which the risk of tooling the baby with deviations in development is not lower than the threshold and offer them a more thorough and deep survey, for example, invasive, on which a woman will be recommended to adopt Decision on the preservation or interruption of pregnancy.
APF - Blood serum protein of the embryo. He begins to be produced from the third week after conception in the yolk bag, and from the second trimester (after the reduction of the yolk bag) in the liver and in the NGC of the Future Child.
Therefore, from the moment of conception, the level of alpha-fetoprotein in the blood of the woman increases significantly and from the second trimester of pregnancy its value, in a complex with other indicators, informative as markers of the state of development of the fetus and the flow of the toal process.
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