Pregnancy is truly a great happiness for all mothers and fathers. During pregnancy, to better understand the development of the fetus in the womb, the mother will have to undergo many tests as well as necessary pregnancy ultrasound.
The first and most obvious sign that the mother has conceived is menstrual delay. But do not rush to get an ultrasound right away. If the fetus is too small, the ultrasound can not see the pregnancy bag, but makes pregnant mothers easily feel worried.
Therefore, the best time to have the first pregnancy ultrasound is when you have at least 2 weeks of delay.
During the first ultrasound, your doctor will help you confirm exactly whether you are really pregnant or not, know where the fetus is inside or outside the uterus or the fetus is in an unusual position. or not.
Therefore, the first ultrasound is very important because it will help you detect the unusual signs of pregnancy. Thanks to that, you can receive timely treatment and ensure safety in terms of health.
- The first 3 months of ultrasound scan at least once to determine gestational age with quite a few errors (only 3-5 days).
- From week 11 to week 13 + 6 days. Pregnant mothers will be ultrasound to determine the blur of the nape of the neck. This is also an important stage in pregnancy because the doctor can detect the fetal defects early.
- Ultrasound week 20-24 by 3D or 4D methods.
- Mold 30-32 weeks pregnancy check to help locate the placenta.
- Ultrasound at 35-36 weeks time helps to evaluate the health of the fetus, growth speed and weight of the baby in the womb.
Pregnant mothers need to note that the nape of the nape of the neck appears only at the time of 11-13 + 6 weeks. Therefore, if you go to antenatal care earlier than 11 weeks or later (at week 14), the doctor can no longer see the dullness of the nape of the nape. This also affects the performance of a double test that helps screen for chromosomal defects in the fetus.
In case the mother elected to give birth later than the above milestone, she can still perform another test called Triple test.
In addition, ultrasound at 15-20 weeks can completely help detect defects at that time.
In addition, 4D ultrasound should only be performed at 20-24 weeks. If it is impatient to see the baby's face, it is not effective because the fat layer on the fetal face is not stretched enough to see the contours. Plus the early ultrasound will make detecting defects more difficult. But if it is too late compared with the specified milestone when the fetus is too large, the ultrasonic probe cannot comprehensively examine the external defects of the fetus.
Theoretically, ultrasound is the use of sound waves to collect images in the mother's womb. Therefore, most of the ultrasound can only diagnose morphological defects such as cleft palate, heart defects, ....
However, there are also many types of defects that do not show the physical appearance, which are difficult to detect such as chromosomal abnormalities, down syndrome, cataract fetus, sensory abnormalities. deaf, blind, ...
2D ultrasound - black and white imaging is usually suitable for all stages of pregnancy.
Meanwhile, 3D or 4D ultrasound (one more dimension of time and space) will help the doctor see clearly the outside images of the fetus and help detect defects. Two forms of ultrasound should be performed at 20-24 weeks.
Usually an ultrasound will be done on a regular pregnancy check-up schedule. Pregnant mothers should note the following to help your doctor perform a clearer and more accurate ultrasound such as:
Clean urination before each pregnancy ultrasound.
In some cases the fetus is not in the correct position as the upside down position will be difficult to measure the blur of the nape of the neck. Then the doctor will instruct the pregnant woman to sit up and wait or gently walk for 15-20 minutes with the aim to give the fetus time to change position.
In addition, regular pregnancy check-up is also one of the most important factors for the most accurate ultrasound results.
See more related posts:
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