Who is not suitable for amniocentesis?

Amniocentesis is a minimally invasive gynecological surgery, which has special and extraordinary significance for pregnant women. The practice of amniocentesis is also of concern to many friends. But not everyone can have an amniocentesis. So, who is not suitable for amniocentesis? Let’s discuss a simple explanation below, and I hope ladies can learn more about it.

Who should not have amniocentesis?

Amniocentesis is unnecessary for pregnant mothers with low risk of Down syndrome screening, because it has certain risks. For pregnant mothers who are at high risk of Down syndrome in the middle and late stages, amniocentesis must be performed to diagnose whether the fetus is Down syndrome. Only diagnosis through amniocentesis can the probability of birth defects be reduced to the greatest extent.

However, it is not necessary for pregnant women to undergo amniocentesis. Generally speaking, amniocentesis is recommended for high-risk pregnant women over the age of 60. Because the proportion of pregnant women over 35 years old giving birth to idiot babies is higher than that of pregnant women under 35 years old, amniocentesis is not mandatory for this group of people, but for the health of the next generation, doctors recommend that it is best to do amniocentesis. Even if you are under 35 years old, if you are found to have high-risk factors after intravenous Down syndrome screening, you should also have amniocentesis for safety reasons.

In addition, pregnant women who have given birth to a child with chromosomal abnormalities must undergo amniocentesis for the health of the next generation; and pregnant women who have been exposed to toxic substances or radiation during pregnancy may also suffer adverse effects on the fetus, so amniocentesis is also necessary to avoid regrets in the future.

How to do amniocentesis during pregnancy

First, pregnant mothers who meet the applicable scope should undergo B-ultrasound to determine the position of the placenta and the condition of the fetus to prevent injury to the embryo;

Second, after selecting the insertion point, disinfect the skin, spread a disinfectant towel, and perform local anesthesia. The lumbar puncture needle with a needle core is inserted vertically at the selected point.

Third, when the needle passes through the abdominal cavity and endometrium, there is a hollow feeling twice, and the needle core is removed;

Fourth, use a 2ml syringe to suck out 2ml of the pregnant woman's amniotic fluid and discard it. This section of the pregnant woman's amniotic fluid is certain to contain the pregnant woman's somatic cells;

Fifth, use a 20ml empty needle to suck 20ml of the pregnant woman's amniotic fluid, put each into 2 sterilized test tubes, and stamp them;

Sixth, remove the needle, cover with sterilized gauze, press for - minutes, and the pregnant mother rests in bed for 2 hours;

Seventh, the chromosome karyotype is obtained after 7-14 days of amniotic fluid culture of the pregnant woman, and then the sex chromosomes are observed and analyzed to see if there is any abnormality.