Do you think that this is a brand called Doppler? In fact, it is not a brand. It is mainly used for fetal heart monitoring. Generally, maternity hospitals provide fetal heart monitoring. These fetal heart rate monitors use ultrasound Doppler technology, so they are called Doppler . So, how much do you know about Doppler fetal heart rate?
At present, some expectant mothers do not go to the hospital for a comprehensive fetal examination, but instead buy an electronic device: fetal heart rate instrument. Used daily at home, use this instrument to observe fetal heart rate and movement. So, does this domestic fetal heart rate instrument have this effect? Or is the data displayed by the home fetal heart rate meter accurate?
After the fetal heart position is correctly found, after hearing the fetal stable and continuous fetal heart sounds, rest for a period of time, and let the fetal heart rate probe receive the stable and continuous fetal heart signal. The value displayed at this time is desirable. Note, however, that the value at this time is not fixed but fluctuates slightly. So do pregnant women know how to find the fetal heart rate at home?
B-ultrasound is a method of ultrasound examination, a non-surgical diagnostic examination, and is generally used in clinical applications. There is no pain, no damage, no radioactivity to the examinee, and they can be checked safely. B-ultrasound can clearly show various cross-section images of various organs and surrounding organs. Because the image is full of solidity and is close to the true structure of the anatomy, the application of ultrasound can make a clear diagnosis early.
For more sophisticated families, home fetal heart rate instrument is very important and necessary. In addition, the normal heart rate of infants changes with the mother's uterine environment, and the change in fetal heart rate is a manifestation of the normal regulation of body functions and a good manifestation of the baby's condition in the mother's body. The mission of the fetal heart rate instrument is to detect the unhealthy fetus as soon as possible.
Moms don't have to worry too much. They always check the heartbeat of the fetus like they take care of a critically ill patient. Once a day is enough to observe the frequency of fetal heartbeat, and will not affect the growth and rest of the fetus.
Family fetal heart rate monitoring is only a supplement to the production inspection and monitoring. It cannot completely replace the hospital inspection. Errors will definitely exist, but for regular products with medical device production and sales licenses, the errors are controlled within an acceptable range. use.
The operating principle of unqualified home fetal heart rate instrument can harm the baby's hearing. Many products have increased the operating principles that should not be used in order to make the mother hear the fetal heart. For the baby's health, you should buy from a regular manufacturer. Fetal heart rate, do not greedy cheap to buy Sanwu products.
The baby's heartbeat is a dynamic value, and it is not static. Relatively speaking, the fetal heart rate measurement results are relatively stable, and the B-wave is relatively large, because the fetus may be stimulated and the heartbeat will speed up. When B is overtime, the fetal heart rate data will always change, as long as it is within the normal value range.
Now you can buy a variety of fetal heart rate instruments on the Internet, and the price is in a variety of different ranges. Pregnant mothers must pay attention to national certification when choosing, do not buy at will, as long as the qualified The nationally-approved fetal heart rate products purchased on the online shopping platform are relatively reliable.
The digital fetal heartbeat is normal. It may be that the position of the fetal heart is not looking good, or the baby is fetal. At this time, the pregnant mother should first relax and wait for the baby to stabilize before observing. After the heart sound, stand still for a while to allow the probe to receive a stable and continuous fetal heart signal. The value displayed at this time is desirable.
The fetal heart rate meter is sold at major websites and medical institutions such as pharmacies, hospitals, etc. The price is more than 100-300. Do not buy through unknown channels, look for national certification, do not arbitrarily do not have qualification certification Website or store.
Pregnant women experience mild abdominal pain at certain stages, and this condition is mostly normal. But if it's sudden abdominal pain and it's spastic, it needs attention. In the first trimester, severe lower abdominal pain accompanied by vaginal bleeding may be an early warning of ectopic pregnancy or threatened abortion. You should go to the hospital for an examination immediately.
The fetal heart rate meter is sold on major websites, major pharmacies, and hospitals, but before making a purchase, pregnant mothers must be careful not to buy at random places with inadequate qualifications, look for the national three packs, and do not buy unknown Fetal heart rate meter to avoid inaccurate fetal heart rate monitoring or lead to unexpected conditions.
Vomiting during pregnancy is normal, and almost all pregnant women experience days of vomiting. And late vomiting is also a normal phenomenon and has little to do with whether the fetus is hypoxic.
Pregnant mothers with a history of spontaneous abortion also have an increased risk of fetal termination. Or maternal hormone secretion is insufficient. There are also pharmaceutical and environmental factors.
Most of the abnormalities of the fetal heart are caused by the hypoxia of the fetus. The degree of the abnormality of the fetal heart represents the degree of hypoxia of the fetus, and a small part of the abnormalities are other reasons: pregnant women are unwell; pregnant women take Shuchuanling and atropine; Pregnant women eat irritating drinks and food or are hungry; pregnancy is more than 40 weeks old; pregnant women are in a bad mood; pregnant women have insomnia, etc.
From the 28th week of pregnancy or the 8th month of pregnancy, the fetus is prone to hypoxia. When the fetus develops hypoxia, it will have a great impact on the fetus, affecting the healthy development of the fetus, endangering the fetal life safety, and making the fetus Brain damage and heart failure can also pose a major threat to the lives of pregnant women.
In the early stage of hypoxia, pregnant women will show more fetal movements, but they will gradually weaken and the frequency of fetal movements will decrease. If the fetal movement is weakened, it means that the fetus is in a more dangerous situation, but it may also be just the fetus is resting. At this time, it is best to perform relevant checks every day to reflect the fetal health status in time through the fetal movement.
Abnormal fetal heart rate: Before fetal movement is reduced, fetal heart rate exceeds 160 beats / min, which is a signal of early fetal hypoxia; fetal movement is reduced or stopped, and fetal heart rate is less than 120 beats / min, which is late fetal hypoxia. Loss of temper: The fetus will issue a distress call for help in the early stage of hypoxia, manifesting as "losing temper". Change in fetal movement: The frequency of fetal movement varies depending on the fetus. If abruptly abnormal, pregnant women need to pay more attention.
The fetal movement changes, the baby becomes stuffy and loses his temper. Fetal heart abnormalities, more than 160 beats / min, early hypoxia signal; less than 120 beats / min, late hypoxia. The fetus does not grow for two weeks.
There are several methods to determine whether the fetus is hypoxic. The first is abnormal fetal movement and the second is abnormal fetal heart.
Hypoxia in pregnant women's body will definitely cause hypoxia in the baby. If the mother is connected, hypoxia in pregnant women will generally be dizzy and chest tight. At this time, you must go to the hospital to check for the cause, otherwise it will directly cause the baby to stop growing.
The number of fetal movements is high at first, then gradually weakens and the frequency of fetal movements decreases. Fetal movement is weakened, which indicates that the fetus is in a more dangerous situation. It needs to be tested every day in order to reflect the safety of the fetus through the situation of fetal movement.
Under normal circumstances, the fetal stop is not detected by the fetal heart rate. The most common problem of the fetal stop is the problem of the embryo itself, because 70% to 80% of the chromosomes will be eliminated according to the principle of survival of the fittest. Normal growth. However, you can use the fetal heart rate monitor to monitor the baby's fetal heart rate, and timely detect and handle the abnormal situation of the fetus.
Fetal hypoxia generally occurs during the second trimester and during labor. The second trimester refers to the period from 28 weeks of pregnancy to the production stage, but the fetal hypoxia may also occur under special circumstances in the early stage. Pregnant women should go to the hospital for various tests on time To ensure the healthy growth of the fetus.
In general, there are three reasons for fetal hypoxia, namely maternal factors, factors between mother and fetus, and fetal factors.
Generally, the baby's fetal heart rate can be detected by the fetal heart rate instrument around 18-20 weeks of pregnancy. The use of the ultrasound fetal heart rate instrument is usually used for pregnant women with abnormal fetal movement or suspected abnormal fetal movement.
The normal fetal heart rate is 120 ~ 160 beats / min, the average fetal heart rate is 162 beats / min before 20 weeks of pregnancy, the average is 147 beats / min at 21 to 30 weeks of pregnancy, and the average is 139 at 31 to 40 weeks of pregnancy. Times / minute.
The contents of the manual are more important: product composition, safety guidelines, performance requirements, LCD display, battery, operation and use.