## After X -ray, I found pregnancy. Can this child still ask?

I received a particularly anxious private message today:

Dr.X, I just checked my pregnancy today, but I remembered that my arm fell half a month ago and went to the hospital to take a X -ray!I heard people say that X -ray has a very strong radiation and will it have a bad impact on my baby?Will it cause baby deformity?

B -ultrasound, CT, X -ray, magnetic resonance … The checking methods of seeing a doctor now are becoming more and more accurate, but it also causes many patients to have a lot of concerns and doubts due to insufficient awareness.

Today, Dr.X will answer for everyone: B -ultrasound, CT, X -ray, magnetic resonance, can you do it if you are pregnant.

First answer the reader’s urgent question: A X -ray of the arm was made half a month before pregnancy, which will not have a health impact on the fetus, don’t worry.

So, what about other X -ray inspections?

According to data from the American Radiation Association and the Maternity Association, pregnant women receive a single chest X -ray examination, and the fetal dose is 0.02–0.07 mm RAD.But only higher than 5000 mm RAD can fetal damage.Even according to the highest dose, that is, 5000 ÷ 0.07 = 71428 chest flat tablets can cause fetal damage, and it can’t take so much in a lifetime.

The conventional dental X -ray examination, the head X -ray examination of the head, the X -ray examination of the limbs, and the single radiation of the chest X -ray examination can be ignored.

Putting CT and X -light together is because both are ionized radiation. Although the amount of radiation of CT is higher than the X -ray, it will not exceed 5000 mm RAD, and will not cause damage to the fetus. Cancer stage cancer is during childhood.The risk increase can also be ignored.

Therefore, even if you are pregnant, occasionally a CT or X -ray examination, there is no problem at all, it is enough to do a regular checkup.

Everyone who has given birth to a baby knows that during the pregnancy, the most often did the B -ultrasound in addition to the blood testing. Especially when the birth was about to be born in the later period, it was a little uncomfortable. The doctor suggested to do a B -ultrasound.

But will it affect fetal health if you do too much?

First of all, B -ultrasound is vocal conduction, and there is no ionize radiation and electromagnetic radiation. This sound waves have no harm to human tissue.

However, if the sound waves are dense in a certain fixed place and gather for a long time, there will be a thermal effect. When this thermal effect reaches a certain degree, it may have adverse effects on human tissue, affecting the material in the cell, including chromosomal.As a result, high -intensity ultrasound will cause harm to the tissue.

The B -ultrasound used in medicine is low -intensity and is not harmful to the fetus. At present, B -ultrasound is the most commonly used image test in the obstetric examination of each hospital.

Although the B -ultrasound is safe, it doesn’t make sense to do more. Dr.X recommends that pregnant mothers do 5 ultrasound during regular pregnancy:

The first time: 8 weeks of pregnancy, the main role is to determine the gestational week, whether the intrauterine pregnancy, the calculation of the pregnancy period, whether the multi -child, the multi -fetal nature, etc.;

Second time: 11-13+6 weeks of pregnancy, you can use B-ultrasound to do NT thickness check for neck;

The third time: 22-26 weeks of pregnancy, but the B-ultrasound performed fetal deformed examination;

The fourth time: 32-34 weeks of pregnancy, the role is the inspection of supplementation and fetal growth and development, check whether the fetus has limited growth, amniotic fluid and umbilical cord conditions, etc.;

Fifth time: 37-38 weeks of pregnancy, check placenta maturity, fetal growth and development, or umbilical cord around the neck.

In order to figure out the baby’s gender, it is not advisable to go to many hospitals to repeat B -ultrasound!

Magnetic resonance (MRI) is the principle of electromagnetic wave imaging of short bands, and there is no ionization radiation.

However, due to the special nature of the fetus, you should be careful if you do any examination.MRI is not a general screening method.

Only when the development of the fetal central nervous system is needed or the placenta abnormalities such as the pre -diagnosis of the placenta are needed, magnetic resonance is the best choice.

Some people think that the thermal effects and sounds of the nuclear magnetic magnetic magnetism are relatively loud, and they are worried that the fetal malformations and hearing damage will be caused, but this is not found in clinical practice. Therefore, the pregnant mothers can relax their minds when they must do it.

There is also a source of radiation that really needs attention -cigarettes.

Cigarettes contain radioactive substances 210, which can release α rays.If you suck 30 cigarettes a day, the annual radiation is equivalent to 6.5 head CT examinations, or 650 chest slices!

Normal medical examinations are not terrible, and it is even more important to stay away from smoking and second -hand smoke away from life.

Pregnancy Test Midstream 5-Tests