When is fetal heart monitoring done?
Nothing beats the feeling of hearing your baby’s heartbeat for the first time, what is fetal heart monitoring and when is it done? Here we have the answer for you.
Fetal heart rate monitoring is the abbreviation of fetal heart rate and fetal movement uterine contraction. It is a graph that uses the fetal heart rate electronic monitor to record the fetal heart rate curve and the contraction pressure waveform for clinical analysis.
The use of microwave technology is generally done in about 34 weeks, usually once a week. Normal pregnancy begins with fetal heart monitoring once a week from the 30th week of pregnancy. If there are complication or complications, it can be done from the 34th week of pregnancy.
What does the fetal heart rate chart look like?
- The fetal heart rate baseline within 20 minutes in the fetal heart rate monitoring chart is 120 to 160 times. It is best in the absence of fetal movement, and the full score is greater than 160 or less than 120 as appropriate.
- The amplitude of the fetal heart rate monitoring chart is the fluctuation amplitude of the fetal heart baseline when there is no fetal movement. More than 10 is the full score, and 5-9 times is 1 point.
- The number of fetal heart rate rises during fetal movement in the fetal heart rate monitoring diagram is greater than 15 times, from the starting point to the highest point.
- The duration of fetal heart rate rising during fetal movement in fetal heart rate monitoring diagram is greater than 15 seconds, from the starting point to the highest point.
- In the fetal heart rate monitoring diagram, the number of fetal movements within 20 minutes is greater than 3 times.
What to pay attention to when doing fetal heart rate monitoring
Fetal heart monitoring plays an important role in early detection of fetal heart abnormalities and timely treatment to reduce perinatal mortality. And play a major role in finding abnormal fetal hearts . Eat half an hour before fetal heart monitoring, do not fast because fetal heart monitoring sometimes takes a long time, also choose a comfortable posture.
When fetal heart care is performed, abnormalities in the fetal heart pattern are found and often used to indicate fetal hypoxia. The more severe the fetal heart abnormalities, the more serious the fetal hypoxia, but not all fetal heart abnormalities are caused by hypoxia. For example, the fetal heart rate of hyperthyroidism mothers will be above normal range.
If pregnant women take certain medications, such as atropine, it can cause the mother and child to have a faster heart rate. Slow fetal heart rate may be caused by fetal hypoxia, but sometimes pregnant women takes certain medications, such as propranolol, it acts on the fetus through the placenta, causing the fetal heart rate to slow down.