Listen to where the fetal heartbeat is.
Listen to where the fetal heartbeat is.
Fetal heart is formed at the end of the eighth week of pregnancy, and the heartbeat of fetal heart can be detected by B-ultrasound. At the end of the 20th week of pregnancy, the fetal heart sound can be clearly heard from the pregnant woman's abdomen with the fetal heart stethoscope, and the frequency and strength of the fetal heart can be judged, so as to understand the growth and development of the fetus in the uterus.
Generally, auscultation is clearer on the back of the fetus. According to the fetal position, find the part of the fetal head, and then go down to find the clearest part. So that I can hear some experiences in the future. The frequency is fast, and 120- 160 times per minute is normal.
To hear the fetal heart correctly, we must first wear a stethoscope correctly. The method is as follows: the stethoscope is designed with a patented ear canal that conforms to ergonomics and a sinus that conforms to the angle of the ear canal. It can comfortably fit the listener's ear canal without making you feel tired and uncomfortable. Before wearing the stethoscope, please pull the ear tube of the stethoscope outward; The metal ear canal should be tilted forward and inserted into your external auditory canal, so that the ear sinus and your ear canal can be tightly closed. Everyone's ear canal is different in size, so you can choose the appropriate ear sinus.
An instrument for listening to fetal heart rate
Pregnant women can hear the heartbeat of the fetus at 12 weeks of pregnancy, that is, the fetal heart, but the fetal heart sound is very light at this time. Pregnant women need some special instruments to listen to the fetal heart from 15 weeks of pregnancy, so as to grasp the health and development of the fetus. So, what instrument is used to listen to the fetal heart? The following small series summarizes the commonly used instruments for listening to fetal heart.
1, stethoscope
The fetal heart rate is strong, fast-paced and sounds like a pendulum. The speed of fetal heart beating is closely related to the state of the fetus (variability of fetal heart). When the fetus is awake, the fetal heart rate increases; When the fetus is in a quiet sleep state, the fetal heart slows down.
2. Fetal language instrument
Fetal speech instrument is a kind of household consumer electronic equipment which combines traditional ultrasonic Doppler probe with mobile internet, which is very different from traditional fetal heart. The fetal sound meter transmits the fetal sound collected by the probe to the smart phone or terminal for processing.
3. Fetal heart rate
Fetal heart rate can be heard by Doppler auscultation technology, and some can be displayed by LED or LCD screen.
With the instrument for listening to fetal heart, we still need a correct method. The following summarizes the use steps of some instruments.
1, lie flat
Listen to the posture of fetal heart: please find a more comfortable, quiet and undisturbed environment for pregnant mother to lie flat, raise her head slightly, straighten her legs and relax, although you are looking forward to it, haha. Listening to the fetal heart is a pleasant thing, don't you think? At the same time, when lying flat, the fetal heart position will be closer to the abdominal wall of pregnant women, the distance from the probe will be closer, and the fetal heart sound will be easier to hear.