What is normal uterine contraction pressure?

Fetal heart rate monitoring is an item that mothers must check during pregnancy. Through fetal heart rate monitoring, it can assess whether the fetus is growing and developing normally in the uterine cavity, and can deal with abnormal fetal heartbeats in time. Fetal heart rate monitoring is regulated by the central nervous system and sympathetic nervous system. The curve of the monitoring graph produced by recording the changes in the fetal heartbeat in an instant through data signals can be used to understand the response of the fetal heartbeat when the baby moves and the uterus contracts, so as to infer whether the fetus in the uterine cavity is short of oxygen. What is the normal uterine contraction pressure?

When the uterus contracts, the working pressure of the uterine cavity reaches 6.7-8.5kpa (50-6b250mHg).

How to judge the fetal heart rate monitoring chart

In a normal pregnancy, fetal heart rate monitoring should be performed once a week starting from the 37th week of pregnancy. If there are complications or symptoms, it can be performed from the 28th to 30th week of pregnancy. Attention should be paid to whether the regularity of the fetal heart rate is sometimes fast and sometimes slow. The normal fetal heart rate is 120-160 beats/minute. If the fetal heart rate is above 160 beats/minute or continuously exceeds 100 beats/minute, it indicates that the fetus is suffering from intrauterine hypoxia and should be treated in time.

There are mainly two lines on the fetal heart rate monitoring chart. The upper one is the fetal heart rate, which fluctuates between 120-160 under normal circumstances. It is usually manifested as a basic heartbeat line, which is a wavy straight line. When the fetal movement occurs, the heartbeat will increase, forming an upward convex curve. After the fetal movement ends, it will gradually decrease. The fetal movement count of &30 times/12 hours is normal, and 10 times every 12 hours indicates fetal intrauterine hypoxia. The lower line shows the intrauterine pressure, which increases during contractions and then maintains around 2b250mHg.

The efficacy of fetal heart rate monitoring

Fetal heart rate monitoring can often become one of the indispensable items in the examination of expectant mothers, because its function is irreplaceable. Fetal heart rate monitoring is an important test method to accurately assess the intrauterine condition of the fetus. It plays an important role in early detection of fetal heart rate abnormalities, proper treatment and reduction of perinatal mortality.

If the fetus is indeed found to have an abnormal heartbeat, the fetal heartbeat graph on the monitor will immediately reflect the abnormality. After eliminating the common fetal intrauterine hypoxia and the pregnant woman's own reasons, if the fetal heart rate continues to slow down, you should pay attention to check whether the fetus has congenital heart disease.

Fetal heart rate monitoring time

Generally, self-monitoring cannot be performed before 15 weeks of pregnancy. For pregnant women between 15 and 28 weeks of gestation, it is safe to measure three times a day for one minute each time. For pregnant women after 28 weeks of pregnancy, the fetus has completely split and the monitoring time and frequency can be extended. For high-risk pregnant women after 35 weeks of pregnancy (for example, pregnant women with combined pregnancy-induced hypertension, hyperthyroidism, etc.), they should be hospitalized and use a fetal heart rate monitor to continuously monitor the fetal heartbeat. If necessary, long-term (more than 1 hour) continuous monitoring can be carried out.