What is the reason for a fast heartbeat on fetal monitoring?

When a woman reaches the late stage of pregnancy, she needs to count the fetal movements herself to determine whether the fetus is healthy. However, some people do not know how to count the fetal movements by themselves. At this time, she needs to do a prenatal check-up. The prenatal check-up usually includes fetal heart monitoring and B-ultrasound. The doctor will use these two to determine the development of the fetus in the uterus. Fetal heart monitoring can usually record the instantaneous changes in the fetal heart rate. The curve of this change is a signal of whether the baby is suffering from hypoxia in the uterus.

What is the reason for a fast heartbeat on fetal monitoring?

Fetal heart rate monitoring is a simple, painless prenatal test used to assess the condition of the fetus. During a fetal heart rate monitoring test, your doctor can monitor your baby's heartbeat, including how often your baby's heart rate is when he's at rest and when he's moving. The fetal heart rate should increase when the fetus moves or kicks.

In general, doctors usually recommend that pregnant women do fetal heart monitoring once a week starting from the 35th-36th week of pregnancy. If there are comorbidities or complications, it can be done from the 28th-30th week of pregnancy.

Fetal distress refers to fetal intrauterine hypoxia and a series of metabolic changes, which can endanger the health and life of the fetus and is an important cause of perinatal death. Fetal heart rate monitoring is a method of monitoring the fetus, which is to monitor the fetal heart rate. The purpose is to use the fetal heart rate monitor to more clearly record the changes in fetal heart rate through the pregnant woman's abdominal wall, and to judge the fetus's health in the uterus and its tolerance to uterine contractions by observing the changes in fetal heart rate and its relationship with fetal movements and uterine contractions.

The normal fetal heart rate is between 120 and 160 beats per minute. If the fetal heart rate remains <120 beats per minute or >160 beats per minute for more than 10 minutes, it indicates that the fetal heart rate is abnormal. During fetal heart monitoring, if an abnormality is found in the fetal heart graph, it is often used to indicate fetal heart abnormality.

In most cases, abnormal fetal heart rate means that the fetus is suffering from hypoxia in the uterus. The more severe the abnormal fetal heart rate, the more severe the fetal hypoxia. However, not all abnormal fetal heart rate is caused by hypoxia. The condition of the pregnant woman herself also affects the changes in the fetal heart rate. For example, if the pregnant woman has a fever, the fetal heart rate will often exceed 160 beats/minute. If the pregnant woman has hyperthyroidism, her own heart rate is very fast, and the fetal heart rate will often exceed 160 beats/minute. If the pregnant woman takes certain medications, such as salbutamol taken during premature delivery to preserve the fetus, or atropine, it can cause the mother and child's heart rate to accelerate.

How to do fetal heart monitoring

Generally, when there are no uterine contractions, the fetal heart rate monitor will place the probe on the pregnant woman's abdomen to observe changes in the fetal heart rate when the fetus is at rest and when it is moving. Since the fetal wake-sleep cycle is 20-40 minutes, the routine monitoring time is 20 minutes.

You can eat something before doing fetal heart monitoring, which is said to stimulate the fetus to move more. While there's no evidence that eating actually works, it can't hurt. It is best to go to the bathroom before doing this, because you may have to stay next to the fetal heart rate monitor for up to 40 minutes. When doing fetal heart monitoring, it is best to lie on your left side, and you can also put a backrest behind you.

If there is no response in the first 20 minutes, the measurement must be continued after moving the fetus, changing the pregnant woman's position, administering sound stimulation, taking sugar water, or injecting 60ml of 50% GS intravenously. To shorten the monitoring time, if there is no fetal movement after 10 minutes of monitoring, you can use one of the above methods to stimulate the fetus, and then wait 4-5 minutes before monitoring for a second 20 minutes. If fetal movement occurs and the fetal heart rate accelerates to the above standards, the monitoring can be terminated. If the standard is not met, the doctor will decide to re-examine in 1-3 days based on the specific situation.