The skill of calculating the expected date of birth of test tube babies
In vitro fertilization technology is used to combine eggs and sperm in the laboratory, cultivate them to a certain stage, and then transfer the embryos back to the mother's uterus to help infertile couples realize their reproductive dreams. For test tube babies, the accurate calculation of the expected date of birth is crucial to the health of mothers and babies. Next, we will introduce the skills of estimating the expected delivery date of IVF from four aspects.
1. Determination of fertilization date
The date of fertilization is the basis and the most critical step for calculating the expected date of delivery. Usually, IVF embryo transfer is carried out the day after the eggs are collected. According to the survival time of sperm and eggs, the normal pregnancy cycle is about 14 days after the fertilization date. In order to determine the date of fertilization, doctors will calculate according to the time of egg collection and embryo transfer, usually considering the quality of eggs, embryonic development and other factors.
In addition, some hospitals will determine the date of fertilization by detecting the level of human chorionic gonadotropin (hCG) produced in the embryo in combination with the hematological examination after embryo transfer. In this way, the expected date of IVF can be calculated more accurately.
In conclusion, when determining the date of fertilization, the hospital and the patient need to work together to make comprehensive judgments through a variety of methods to improve the accuracy.
2. Application of ultrasonic inspection
Ultrasonography provides an important basis for predicting the expected date of delivery. Generally speaking, the expected date of IVF is calculated according to the development of embryos. The first ultrasonic examination was carried out within two weeks after embryo transfer, and doctors could observe the embryo implantation, the formation of embryo sac and the degree of embryo development. Through ultrasound images, we can measure the size of the embryo, heart rate and other indicators, so as to calculate the expected date of delivery.
In addition, through continuous ultrasound examination, doctors can also observe the development of the placenta and fetal membrane, and monitor the growth of the fetus. These data can also be used to correct the expected date of birth, so as to calculate the expected date of IVF more accurately.
Ultrasonography is a non-invasive and reliable means of examination, which plays an irreplaceable role in predicting the expected date of delivery.
3. Consideration of individual differences of pregnant women
The individual differences of pregnant women should also be taken into account in the calculation of the expected birth date of test tube babies. Each pregnant woman's physiological characteristics and physical conditions are different, and these factors will have a certain impact on the development of embryos and the expected date of delivery.
Age is an important factor. Older pregnant women may have a decline in the function of the reproductive system, which will have a certain impact on the development of embryos. In addition, whether pregnant women have basic diseases and complications during pregnancy will also have a certain impact on the expected date of delivery.
Therefore, doctors will take full account of the individual differences of pregnant women and combine medical knowledge and clinical experience to more accurately judge the expected date of birth of test tube babies when calculating the expected date of birth.
4. Observation of early pregnancy reaction
Early pregnancy reaction is also an important basis for determining the expected delivery date of IVF. After embryo implantation, pregnant women often have nausea, vomiting, breast pain and other symptoms, which is the manifestation of early pregnancy reaction.
By observing the early pregnancy response of pregnant women, doctors can preliminarily judge the expected date of IVF. Generally speaking, the more obvious the reaction to early pregnancy, the earlier the expected date of delivery. However, it should be noted that the degree of early pregnancy reaction may vary depending on individual differences. Therefore, it is not only necessary to rely on early pregnancy reaction to determine the expected date of delivery, but also need to combine other factors to make a comprehensive judgment.
conclusion
Estimating the expected date of delivery of test tube babies is a complex process that requires comprehensive consideration of many factors. By determining the date of fertilization, applying ultrasonic examination, considering individual differences and observing the early pregnancy reaction, the expected date of IVF can be calculated more accurately.
For test tube babies, accurate prediction of the expected date of birth is crucial to the health of mothers and infants, which can provide guidance for doctors to formulate reasonable prenatal examination plans and pregnant women to prepare accordingly.
Therefore, in the process of IVF treatment, patients and hospitals should fully cooperate, provide relevant information in a timely manner, and actively participate in the doctor's diagnosis and treatment plan, in order to obtain a better prediction of the expected delivery date.
