Is fetal adoration harmful to the fetus after all?

Ultrasonic examination is a physical examination method that combines the physical characteristics of ultrasonic wave (such as directivity, reflection, attenuation, resolution, penetration, etc.) and the acoustic characteristics of human tissue structure. Ultrasound is a sound wave with a high vibration frequency that exceeds the upper limit of human ear hearing. By virtue of its physical characteristics, it can transmit and receive its echo signals to the internal organs and tissues of the human body for examination, so as to help diagnosis and treatment. Sound waves are a physical factor, an energy, and there is a question of a safe dose. Whether ultrasound is harmful or harmless to humans or fetuses depends on the dose of ultrasound, also known as threshold safe dose. That is, when the ultrasound dose used is less than this value, it is harmless, and when it is greater than this value, it may produce harmful effects or damage. The principle of ultrasound is also used in fetal aspiration, but its sound intensity is far less than that of ordinary b-ultrasound equipment. There is an ALARA principle in the international ultrasonic medical community, which is "to obtain the required information at the lowest possible acoustic output". Ultrasonic diagnosis is irreplaceable in pregnancy care, and has long been considered as an ideal simple, reliable, painless, non-invasive, radiation-free and safe examination and diagnosis method in obstetrics field. In general, the application of ultrasound in obstetrics and gynecology, whether there is a potential harm to embryos and fetuses, a large number of studies have been done at home and abroad, confirmed that does not lead to fetal malformation, diagnostic ultrasound for patients to bring the benefits of far more than the corresponding risks. For decades, the application experience of foreign similar products has proved that 3 times a day, each time 1 minute fetal heart monitoring is safe. For pregnant women after 28 weeks, fetal differentiation is complete, can lengthen the time and frequency of monitoring.

How many times a day is the most appropriate use?

Expectant mothers can accurately measure the fetal heart of their babies by using doppler fetal adoration. Many expectant mothers have bought doppler fetal adoration. But in the use of the time, encountered difficulties, how many times a day to use it better? Actually, it's not always true that you want to use it a few times a day. Expectant mothers can accurately measure the fetal heart of their babies by using doppler fetal adoration. Many expectant mothers have bought doppler fetal adoration. But in the use of the time, encountered difficulties, how many times a day to use it better? Actually, it's not always true that you want to use it a few times a day. Expectant mothers can accurately measure the fetal heart of their babies by using doppler fetal adoration. Many expectant mothers have bought doppler fetal adoration. But in the use of the time, encountered difficulties, how many times a day to use it better? Actually, it's not always true that you want to use it a few times a day. Expectant mothers can accurately measure the fetal heart of their babies by using doppler fetal adoration. Many expectant mothers have bought doppler fetal adoration. But in the use of the time, encountered difficulties, how many times a day to use it better? Actually, it's not always true that you want to use it a few times a day.

What is the frequency of use of fetal desire?

The frequency of use depends on the actual condition of the mother-to-be. It can be used from 12 weeks. Since the fetus has not moved at this time, it is better to use doppler foetus once a day. To the second trimester, the fetus has a fetal movement, the mother can use the combination of fetal movement, such as... Expectant mothers can accurately measure the fetal heart of their babies by using doppler fetal adoration. Many expectant mothers have bought doppler fetal adoration. But in the use of the time, encountered difficulties, how many times a day to use it better? Actually, it's not always true that you want to use it a few times a day. Expectant mothers can accurately measure the fetal heart of their babies by using doppler fetal adoration. Many expectant mothers have bought doppler fetal adoration. But in the use of the time, encountered difficulties, how many times a day to use it better? Actually, it's not always true that you want to use it a few times a day.
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