How long does fetal heart rate monitoring take?
summary
Fetal heart rate monitoring is the abbreviation of fetal heart rate, fetal movement and uterine contraction diagram. It is a graph that uses the fetal heart rate electronic monitor to record the fetal heart rate curve and uterine contraction pressure waveform for clinical analysis. Fetal heart rate monitoring can be divided into medical and family fetal heart rate monitoring: the hospital fetal heart rate monitoring included in the monthly pregnancy check-up after 12 weeks, and the family fetal heart rate monitoring of the pregnant women through the home fetal heart rate meter. Let's share my experience with you.
How long does fetal heart rate monitoring take?
When doing fetal heart rate monitoring in the hospital, it is carried out through two probes tied to the pregnant woman. One is tied to the top of the uterus, which is a baroreceptor. Its main function is to understand whether there are contractions and the intensity of contractions; The other is placed on the chest or back of the fetus to measure the fetal heart rate.
The screen of the fetal heart rate monitor has the corresponding graphic display of fetal heart rate and uterine contraction, which will display two main lines, one is the fetal heart rate, the other is the intrauterine pressure. Under normal conditions, the fetal heart rate fluctuates between 120-160 beats / min. generally, the basic heart rate line is a straight line, and the heart rate will rise when fetal movement occurs; The lower line will increase during contractions and then maintain about 20mmhg.
The fetal heart rate monitor records the number of heart beats calculated in each cardiac cycle of the fetal heart rate on the drawing in order to show the baseline variation of the fetal heart rate. Within a certain range, the baseline change of fetal heart rate indicates the establishment of central nerve autonomic nerve regulation and cardiac conduction function, and the fetal heart rate has a certain reserve.
matters needing attention
Fetal heart rate monitor / fetal speech monitor: these two monitors adopt Doppler auscultation technology, which can be used to listen to fetal heart rate, and some can display fetal heart rate through LED or LCD screen; Fetal speech instrument is an intelligent device, which can meet the standard of monitoring fetal heart rate at home, and is used to listen and record fetal voice; The function of counting fetal heart rate and fetal movement is more perfect than traditional, but it should be connected with mobile phone software, which is suitable for pregnant women with apple and Android mobile phones.
