Monday, June 22, 2020

Do B ultrasound at least five times during pregnancy

Pregnant women and their families often consult about common problems and precautions during pregnancy. We have summarized the reader's questions and answered them in a unified manner, hoping to help pregnant women with no experience.

Question: When can early pregnancy reactions be reduced? Does it affect the fetus?

Ren Xia: The early pregnancy reaction usually occurs 5 to 6 weeks after menopause, lasts for about 6 weeks, most people can relieve themselves, and disappear by 12 weeks of pregnancy. However, there are also some people who react violently during pregnancy, which manifests as vomiting after eating, which is abnormal. In this case, there may be ketosis, metabolic acidosis, electrolyte disturbance, etc., severe cases can even threaten the life safety of pregnant women, and also pose a threat to the growth and development of the fetus. Frequent ketosis during early pregnancy can cause fetal malformation or miscarriage, and can also affect the intellectual development of the fetus, and must go to the hospital for treatment and treatment.

Question: How much weight gain during pregnancy is normal?

Ren Xia: The nutritional status of the mother during pregnancy directly determines the health status of the pregnant woman and the baby. Some pregnant women eat hard after pregnancy, and their weight during pregnancy rises by 30 to 50 pounds. They think that the more they grow, the healthier the fetus will be. In fact, before the 12th week of pregnancy, body weight may not increase, or even slightly decrease, which is normal. Afterwards, the weekly weight gain should be around 0.35 kg, the weight gain during the third trimester should be controlled at 0.5 kg/week, and the average weight gain during the entire pregnancy cannot exceed 12.5 kg. Excessive weight gain can not only cause maternal obesity, gestational diabetes, and high blood pressure during pregnancy, but also cause the occurrence of huge children, thereby increasing the chance of surgical delivery, and even increasing metabolic diseases (obesity, hypertension) , Hyperlipidemia, diabetes).

Question: What is the time for normal delivery?

Ren Xia: 6 to 7 weeks of pregnancy to the hospital to establish a file, 11 to 13 weeks appointment B ultrasound, NT screening (the earliest fetal malformation screening, if abnormal, further screening of Down syndrome, ultrasound examination, amniotic fluid puncture, Fetal umbilical artery puncture, etc.). After that, regular prenatal examinations begin: 12 to 28 weeks of pregnancy, once every four weeks; 28 to 36 weeks of pregnancy, once every two weeks; 37 to 41 weeks of pregnancy, once a week. Those with abnormal pregnancy tests should follow the doctor's advice.

Question: How many ultrasound examinations should be done during pregnancy? Does it affect the fetus?

Ren Xia: at least 5 B-ultrasound examinations during pregnancy: 6 to 7 weeks of pregnancy to see fetal heart and fetal buds, 11 to 13 weeks of pregnancy to screen for NT, 24 weeks of pregnancy to screen for facial, spine, long bones, heart and other deformities To screen for craniocerebral and gastrointestinal malformations at 30 to 32 weeks of gestation, and to understand fetal size, placenta, amniotic fluid, and fetal position at 37 weeks of gestation. If the menstrual cycle is irregular, a B-mode ultrasound should be done about 7 weeks of pregnancy to help check the gestational week and help estimate the expected date of delivery.

No research results at home and abroad have confirmed that ultrasound examination can cause fetal malformations, and that ultrasound examination within 30 minutes is not harmful to the fetus. Therefore, when abnormal bleeding during pregnancy, abnormal placenta position, fetal growth restriction and other abnormal conditions need to be reviewed regularly B timeout, pregnant women should follow the doctor's instructions to ensure mother and child safety.

Question: Which is the sign of labor?

Ren Xia: Irregular and painless uterine contractions in the third trimester are normal and need not be strained. After 37 weeks of gestation, if the uterus contracts every 3 minutes and the pain lasts longer than 30 seconds, emergency treatment is required. A small amount of vaginal bleeding (see red) is a sign before labor. In theory, pregnant women will be labored within 24 hours of seeing red, but there are clinically pregnant women who have not delivered labor after a week of seeing red. Therefore, you don't need to be nervous to see red. You can wait at home to observe the amount of vaginal bleeding and fetal movement. If vaginal bleeding is greater than the amount of menstruation or abnormal fetal movement, you should go to the hospital in time. Vaginal water is a manifestation of premature rupture of the fetal membrane. At this time, there is a risk of umbilical cord prolapse. Pregnant women should lie down immediately and go to the hospital as soon as possible.

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