Genetic Testing on Fetus

Genetic Testing on Fetus


Genetic Testing Fetus

Genetic analysis has long since become a usual test for pregnant women. Why is it necessary? It allows to define serious diseases and say if a baby is prone to having this or that disease while he/she is still in the womb.

There are conditions when a pregnant woman should necessarily undergo genetic analysis so that to keep herself and her baby safe. One more benefit of this analysis is that it allows to avoid complications that may occur during the course of pregnancy and labour.

Causes for Genetic Analysis of the Fetus

It is necessary to undergo genetic analysis in the following cases:

  1. Genetic imbalance of fetus. Nowadays it very often happens so that a woman loses her baby due to a miscarriage. The most common reason for it is genetic imbalance. In order to avoid it, a woman should consult a geneticist and make all the necessary tests. Keep in mind that the father of a future baby also should undergo a certain analysis. Doctors will take a sample of chromosome complements that they’ll study carefully.
  2. Define a case of mutation on time. It’s not a secret that those pregnant women who are 35 or older, have a risk of giving birth to a baby with the Down’s syndrome. You need to remember that your age is crucial when it comes down to this syndrome in reference to your baby. That’s why it’s not recommended to give birth to a baby if you’re older than 35. Genetic analysis allows to see if there are any mutations in the organism of your future baby.

The following groups of women should necessarily undergo genetic analysis:

  1. Women whose relatives had or have any genetic diseases.
  2. Women who are over 30 years old.
  3. Women who drank lots of alcohol in the beginning of pregnancy.
  4. Women who took drugs, that may have a serious effect on the fetus, in the beginning of pregnancy.
  5. Women who already have a child with an abnormal chromosome and development problems.

The cases when your doctor tells you to undergo genetic analysis on fetus:

  1. If there are doubts concerning the results of biochemical tests.
  2. If there starts prenatal infection.

Nowadays it’s possible to find out about any abnormalities in the development of a baby before he/she is born. Consequently, once the test is made a woman may no longer worry about the health of her baby. In case there are any abnormalities detected, a woman has enough time to get herself psychologically ready. In some cases, it’s possible to start treatment when your baby is still in the womb. Do not be afraid of undergoing genetic blood analysis if your doctor says you should undergo it.

Should Every Pregnant Woman (no exception) Undergo Genetic Analysis?

Genetic Testing Fetus

Every pregnant woman is recommended to undergo it in order to be sure that her baby is 100 % healthy. You should undergo it as soon as possible so that there is time left to provide treatment (if necessary) on time and avoid serious complications. Unfortunately, according to statistics, women prefer to undergo this analysis only when it’s the only option left.

You need to consult a geneticist when your gynecologist tells you that you should do it. At the same time, you may go to a geneticist any time you want if you feel you need to check that your baby is fine.

What Types of Genetic Analysis Are there?

  1. Traditional means of genetic analysis. For example, an ultrasound examination. The first time a woman undergoes it is between the 10th and the 14th week of pregnancy. It allows to see any abnormalities in the development of your baby. Besides, a woman should make biochemical blood test. It should be made several times during the first months of pregnancy. This test allows to detect inherited abnormalities in the development of your baby as well as those that occur due to the fact that a chromosome complement is damaged. In case there are any abnormalities detected, a woman will be said to undergo an ultrasound examination on the 24th week of pregnancy. You should remember that the tests mentioned allow to only detect some minor abnormalities. In order to check if there are any serious abnormalities, other tests should be made.
  2. Invasive method of carrying out genetic analysis. It is carried out only if the tests mentioned above show that there are some serious abnormalities. Invasive methods allow to detect up to 400 abnormalities.

What Invasive Methods Are there?

  1. Amniocentesis – a test when doctors study delivery waters. They take a long needle, pierce through the uterus with the help of it and take a sample of amniotic fluid. The test is carried out on the 18th week of pregnancy. It is considered to do no harm to your future baby.
  2. Chorion biopsy. During this test, doctors study the cells of the placenta basis. They pierce through the abdominal cavity in order to take a sample. Alternatively, a sample may be taken from the neck of the womb.
  3. Placentocentesis. This analysis is carried out only if a woman has had an infectious disease. It is to be undergone during the 2nd trimester. In case of this analysis, anesthetics are necessary.
  4. Cordocentesis. This is the test when doctors study umbilical cord blood. Some women are recommended to undergo it on the 18th week of pregnancy. Doctors will study blood samples taken from the womb cavity.

To sum up, a pregnant woman is recommended to undergo genetic analysis since it allows to predict and avoid serious problems in the development of her fetus. Besides, some diseases may be cured while your baby is still in the womb. If parents of a future baby decide that it’s necessary to undergo this analysis, it means that they take the question of the baby’s health and development seriously.

They want to check that their baby is fine. Moreover, this analysis allows to detect and prevent problems that may occur during the process of labour itself. You’d better make this test to be sure that there is nothing wrong with you and your baby.

Video: Prenatal Genetic Testing