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Nako: 2023-06-03

Many pregnant women know that when a certain month is reached, the doctor will ask for fetal heart rate monitoring. The fetal heart rate monitoring is mainly to understand the growth of the fetus in the stomach. The following article will introduce the matters that need attention in detail.

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How long does fetal heart rate monitoring take
During the prenatal checkup, the fetal heart rate monitoring time is about 20 minutes each time, which is continuously monitored by the fetal heart rate monitor. If any abnormality is found, the monitoring time will be extended. For high-risk pregnant women, after the 35th week of pregnancy, fetal heart rate monitoring is required in hospital. If necessary, each monitoring time will exceed 1 hour.

When to do fetal heart rate monitoring
For normal pregnancy, it will start from 32 weeks of gestation. Fetal heart rate monitoring will be added to each prenatal checkup. From 37 weeks of gestation, fetal heart rate monitoring will be done once a week; if it is a high-risk pregnant woman or has complications or complications, such as pregnancy-induced hypertension, For overdue pregnancy, diabetes combined with pregnancy, etc., this check may be performed from the 28th week of pregnancy. Pregnant women can also perform fetal heart rate monitoring at home. First, the doctor will determine the position of the fetal heart rate. Later, when the pregnant woman is at home, the husband can directly put his ear on the pregnant woman's abdominal wall to listen, one to several times a day.

The role of fetal heart rate monitoring during pregnancy
The application of fetal heart rate monitoring can understand the reserve capacity of the fetus, understand the status of the fetus in the uterus, detect fetal hypoxia in time, and make an early diagnosis of fetal distress. At the end of pregnancy, the oxygen demand of pregnant women increases. As the fetus grows larger, the space of the fetus in the uterus becomes smaller, the chance of umbilical cord compression increases, and fetal distress may occur. The slow fetal heart rate may be caused by fetal hypoxia, but sometimes pregnant women take certain drugs, and the drugs act on the fetus through the placenta, causing the fetal heart rate to slow down. When there is a phenomenon that the fetal heart rate continues to slow down, it is necessary to pay attention to check whether the fetus has the possibility of congenital heart disease.

The role of fetal heart rate monitoring in labor
Uterine contraction during labor can reduce the circulating blood volume of the uterus and placenta, affecting the blood gas exchange between mother and child. Every time the uterine contraction, the fetus is subjected to the test of hypoxia. Therefore, fetal heart rate monitoring before labor can detect fetal distress in time, and active treatment, such as oxygen inhalation or changing body position, can improve the hypoxic state and reduce neonatal asphyxia and mortality.

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