Prenatal care overview

Prenatal examinations are medical examinations performed regularly by pregnant women during pregnancy to monitor the health of the mother and baby, screen for potential risks, and guide scientific pregnancy management. The main contents includeRoutine physical examination (blood pressure, weight), laboratory examination (blood routine, urine routine), imaging examination (B-ultrasound) and genetic disease screeningWait. Through staged examinations (such as early, middle and late pregnancy), doctors can promptly detect complications such as gestational hypertension and diabetes, assess fetal development, and provide a basis for delivery methods. Prenatal examination is a key measure to reduce maternal and neonatal mortality, and the examination plan formulated by the hospital must be strictly followed.

Core items of prenatal check-up

Prenatal care is usually divided intoMust check itemsandCheck items. Required items cover basic health monitoring, such as NT ultrasound before 12 weeks of pregnancy (to check for chromosomal abnormalities), glucose tolerance test at 24-28 weeks of pregnancy (to screen for gestational diabetes), etc.; optional items are for high-risk pregnant women, such as non-invasive DNA testing or amniocentesis. Taking Peking University First Hospital as an example, its prenatal check-up package includes11-13 inspections, each time focusing on different goals, such as fetal position monitoring and pelvic assessment in the third trimester. Through systematic examination, more than 90% of pregnancy risk factors can be covered.

Prenatal check-up schedule

According to the guidelines of the Obstetrics and Gynecology Branch of the Chinese Medical Association, the ideal frequency of prenatal check-ups is:Once a month before 28 weeks of pregnancy, once every 2 weeks from 28 to 36 weeks, once a week after 36 weeks. Key nodes include:11-14 weeks pregnant(First system check+NT),20-24 weeks pregnant(ultrasound of large abnormality),32-34 weeks pregnant(Assessment of fetal growth restriction). Taking data from Peking Union Medical College Hospital as an example, pregnant women who complete all prenatal check-ups on time have a 67% lower preeclampsia detection rate than those who do not have standardized check-ups. Special groups (elderly age, multiple pregnancies) need to increase the frequency of examinations appropriately.

Precautions for prenatal check-up

Pregnant women should pay attention to: ①fasting items(such as sugar screening) requires fasting for 8 hours; ②B-ultrasound examinationHold urine (early pregnancy) or urinate (late pregnancy) beforehand; ③ Bring past examination reports so that doctors can compare the data. Research from the Obstetrics and Gynecology Hospital of Fudan University shows thatThe highest missed test rate is the second trimester sugar screening(About 15% of pregnant women have not completed it), which may delay the timing of gestational diabetes intervention. There is no need to be overly anxious when the test is abnormal. For example, a high risk of Down syndrome in the second trimester only means that further diagnosis is needed. In the end, only 5% of children are diagnosed with Down syndrome.

Summary of the significance of prenatal examination

Standardized prenatal care can reduceMore than 30%risk of premature birth and fetal malformations. The World Health Organization recommends that all pregnant women receive at least8 professional prenatal checkups, my country's "Maternity and Childbirth Health Care Work Standards" require 5 basic examinations. It is worth noting that more prenatal check-ups are not always better. Excessive check-ups may increase the psychological burden on pregnant women. It is recommended to choose a regular medical institution, adjust the examination plan individually based on the doctor’s suggestions, and cooperate withNutrition during pregnancyandmoderate exercise, to jointly ensure the safety of mothers and infants.

Quote sources:
1. Chinese Medical Association's "Guidelines for Pre-Pregnancy and Pregnancy Health Care (2022 Edition)"
2. World Health Organization "Antenatal Care Recommendations" (2016)
3. "High-Risk Pregnancy Management Manual" by Department of Obstetrics and Gynecology, Peking Union Medical College Hospital
4. Data reference: National Health Commission's "2021 China Maternal and Child Health Development Report"