What to check at each stage of pregnancy

There are many examination items needed during pregnancy, which are mainly divided into three stages, namely early pregnancy, mid-pregnancy and late pregnancy. Different examination items are involved in these three stages. B-ultrasound examination is required in early pregnancy to check whether there is intrauterine infection. In addition, blood routine examinations and other aspects are also required. The focus of the examination will be different in each stage. Let's take a look at this aspect.

What to check at each stage of pregnancy

Pregnancy check-ups are mainly divided into three stages: early pregnancy, mid-pregnancy and late pregnancy, and different examination items are involved in these three stages.

1. In early pregnancy

That is, from the 1st week to the 12th week of pregnancy, the main tasks include: ① B-ultrasound examination, which can rule out ectopic pregnancy, observe the development of the fetus, and measure the size of the fetus; ② Check whether there are pathogens that cause intrauterine infection, mainly to see whether there has been infection with rubella virus, cytomegalovirus, Toxoplasma, herpes simplex virus, etc.; ③ Screening for hepatitis virus, which can cut off mother-to-child transmission of the virus as early as possible; ④ Routine blood and urine examination to check whether there is anemia, blood diseases and urinary system diseases.

2. In the second trimester

That is, from the 13th to the 27th week of pregnancy, the main steps are: ① A color B-ultrasound examination is performed around the 22nd week of pregnancy to fully understand the development of the fetus in the uterus and rule out fetal malformations; ② A sugar screening is performed at 24-28 weeks of pregnancy. If the screening is positive, a further glucose tolerance test is performed to detect pregnancy complicated with diabetes as early as possible and whether the patient has gestational diabetes; ③ MP determination should be performed at 20 weeks of pregnancy to predict whether there is a tendency to pregnancy-induced hypertension syndrome; ④ Down syndrome (congenital idiocy) screening is performed at 16-20 weeks of pregnancy.

3. In the third trimester

That is, from the 28th week of pregnancy to delivery, the main things are: ① Starting from the 32nd week, use a fetal monitor to monitor the fetus, and it is best to do the test once a week, which can observe and record the dynamic changes of the fetal heart rate, and can also predict the fetal intrauterine reserve capacity; ② Umbilical cord blood flow test, which can detect the resistance of the fetal umbilical cord blood flow to understand whether there is intrauterine hypoxia; ③ B-ultrasound examination, which can understand the maturity of the placenta, the amount of amniotic fluid and the growth and development of the fetus; ④ At 36 weeks, perform blood type, four coagulation items, renal function, and review liver function to prepare for delivery.