Master the key points of prenatal check-up at 40 weeks of pregnancy at once Part 1 Early pregnancy (less than 17 weeks) The main prenatal check-up in the first trimester of pregnancy is to confirm that the pregnancy is in the womb, the fetal heartbeat can be seen within 8 to 10 weeks, and the baby's facial features and important organs have begun to

steady development.

At 6 weeks, it is confirmed that the pregnancy is in the uterus. Dr. Chen Yiyong explained: "At this period, ultrasound will first be used to confirm whether the pregnancy is in the uterus and whether there is an ectopic pregnancy or multiple births." Director Lai Zongxuan analyzed: "In natural pregnancy,

In this state, the probability of ectopic pregnancy is 1% to 5%. Therefore, an ultrasound examination is first performed to confirm whether the embryo is implanted in the uterus and whether it is a singleton or multiple births. "At 8 to 10 weeks, the fetal heartbeat can be seen.

After confirming that the embryo has implanted in the uterus, the next step is to determine whether the embryo has a heartbeat.

Director Lai pointed out: "Generally speaking, the fetal heartbeat is obvious after 7 weeks of pregnancy. If you use ***ultrasound examination, the heartbeat can be seen at 6 weeks. However, for general abdominal ultrasound, it is only about 7 to 8 weeks.

You can see it more clearly." The reason why we need to confirm whether the embryo has a heartbeat is because we are worried that it is an "atrophic embryo" or stillborn. Dr. Chen Yiyong explained: "That is, the embryo sac develops in the uterus, but the embryo sac does not have a heartbeat.

"There is no embryo forming." In addition, I am also worried that the embryo will suddenly have no heartbeat and may be stillborn.

Therefore, at 8 weeks, it will first be determined whether the fetal heartbeat is normal.

Generally speaking, if there is a heartbeat, more than 90% of pregnant mothers can carry their pregnancy to term naturally.

However, once atrophic embryos or embryos suddenly have no heartbeat are found, they will usually be followed for 1 to 2 weeks. If no heartbeat or embryo is still seen, it may be recommended to take medication to expel the embryo or perform artificial abortion.

Dr. Chen explained: "Taking drugs to expel atrophic embryos mainly uses prostaglandins to dilate the cervix and cause the uterus to contract violently to expel the embryo." However, if you are worried that the uterus will not be expelled completely, surgery can also be performed. The main reason is that

The results of the discussion between the patient and the physician are carried out.

As for the time when doctors issue the "Handbook for Pregnant Women", generally speaking, the time when each hospital issues it is different.

Generally, large hospitals usually issue the test between 10 and 14 weeks after confirming that there is a heartbeat and there is no chance of early miscarriage.

Master the key points of prenatal check-up at 40 weeks of pregnancy at once. Prenatal check-up items The current prenatal check-up items are divided into two types: "general items" and "special examination items".

General items General prenatal check-up items, Dr. Chen Yiyong took the first prenatal check-up as an example. Prenatal check-up items include blood test, urine test, blood pressure measurement, weight, etc.

The purpose of the blood test is mainly to confirm the blood type and Rh blood type of pregnant women, and to check for anemia, hepatitis B, syphilis, and AIDS.

As for urine testing, it mainly detects urine sugar and urine protein values ??to understand whether you have diabetes or kidney disease.

Also check whether the white blood cells in the urine are too high?

Whether there are urinary tract infections such as bladder inflammation and urethral inflammation.

Director Lai Zongxuan added that the purpose of measuring blood pressure is to check whether the mother's blood pressure is high to understand whether it is complicated by gestational hypertension or preeclampsia. Usually, about 60% of abnormalities can be found in general examinations.

Because ultrasound is so advanced nowadays, most people will measure the head circumference, abdominal circumference and thigh bone length during ultrasound examination to calculate the fetal weight.

Dr. Chen Yiyong pointed out that in the past, the height of the uterine fundus, that is, the height from the pubic bone to the uterus, was measured to assess the size of the fetus, but now it is mostly replaced by ultrasound.

Special items Although general inspections can detect 60% of abnormalities, there are still 40% of problems that cannot be detected through general prenatal inspection items, so some special prenatal inspection items are needed.

Director Lai Zongxuan pointed out: "Maternal blood screening for Down syndrome in the early and mid-term, amniocentesis, etc., are tests for chromosomal abnormalities." In addition, gestational diabetes screening will be performed at 24 to 28 weeks, with sugar water.

Detect whether pregnant mothers have metabolic diseases such as gestational diabetes.

In addition, amniocentesis is performed between 16 and 20 weeks; as for 35 to 37 weeks, a screening test for Group B Streptococcus in the birth canal will be done to find out whether there are Group B Streptococcus carriers in the birth canal and lower digestive tract.

Other special items, such as: usually a pelvic examination is performed at 38 to 39 weeks to understand the maturation conditions of the cervix.

High-level ultrasound examinations will be performed at 20 to 24 weeks.

In addition, there is currently a very popular sheep crystal x-ray examination, which tests maternal blood and fetal cells to check for genetic abnormalities.

At 40 weeks of pregnancy, each stage has different prenatal check-up focuses and important prenatal check-up items. Which ones should pregnant mothers know and not miss?

You may wish to listen to the explanations of professional obstetricians and gynecologists.