How long after oxygen inhalation should fetal heart monitoring be performed?

Oxygen inhalation is a practice that has certain benefits to the human body. Not only normal people can inhale oxygen, but pregnant women can also inhale oxygen. In addition to bringing certain benefits to us, this method can also bring certain benefits to the fetus. However, there is a certain time limit for fetal heart monitoring after oxygen inhalation. However, many people do not know its specific time. So how long after oxygen inhalation should fetal heart monitoring be done?

The more severe the fetal heart rate abnormality, the more severe the fetal hypoxia. However, not all fetal heart rate abnormalities are caused by hypoxia. In addition to the above situations, the condition of the pregnant woman herself also affects the changes in the fetal heart rate. For example, if the pregnant woman has a fever, the fetal heart rate will often exceed 160 beats/minute. If the pregnant woman has hyperthyroidism, her own heart rate is very fast, and the fetal heart rate often exceeds 160 beats/minute. If the pregnant woman takes certain medications, such as salbutamol taken during premature delivery, or atropine, it can cause the mother and child's heart rate to accelerate. A slow fetal heart rate may be caused by fetal hypoxia, but sometimes pregnant women take certain medications, such as propranolol, which act on the fetus through the placenta and cause the fetal heart rate to slow down.

When the fetal heart rate is persistently slow, it is important to check whether the fetus has congenital heart disease. In addition, after 40 weeks of pregnancy, due to developmental problems with the fetal nervous system, the fetal heart rate may sometimes be lower than 120 beats/minute. Therefore, when there is an abnormal fetal heart rate, it is necessary to carefully analyze the situation, make correct judgments and deal with it. If fetal hypoxia is indeed present, delivery should be carried out as soon as possible.

There are many chart lines on fetal heart rate monitoring. When mothers see the overlapping changing lines, do they feel dizzy? Don't worry, the Popular Health Network Encyclopedia tells you what to do. For fetal heart rate monitoring charts, mothers must first understand several basic concepts and what each concept means. Only by truly mastering these basic concepts can mothers read the fetal monitoring chart smoothly! The most important aspects to master are the following: 1. The baseline of the fetal heart rate within 20 minutes is 120 to 160 times. It is best if there is no fetal movement. The full score is greater than 160 or less than 120. Points will be deducted as appropriate.

2. Amplitude is the fluctuation amplitude of the fetal heart rate baseline when there is no fetal movement. 10 or more is full score, 5-9 times is 1 point

3. The number of times the fetal heart rate rises during fetal movement should be greater than 15 times, the number from the starting point to the highest point.

4. The duration of the fetal heart rate rise during fetal movement should be greater than 15 seconds, the time from the starting point to the highest point.

5. The fetus should move more than 3 times within 20 minutes.

A full score means that the fetus is in good condition in the uterus within one week and there are no signs of hypoxia. If the score is between 8 and 7, it indicates suspected fetal hypoxia; if the score is below 7, it indicates intrauterine fetal hypoxia. If the fetal heart rate drops significantly when the fetus moves and returns to normal when the fetus is still, it is suspected that the umbilical cord is wrapped around the neck. The horizontal grid represents time, and the vertical grid represents the number of times. The upper row of graphs represents the trend of the fetal heart rate, and the lower row of graphs represents the pressure in the uterine cavity. The general uterine pressure is 20. If the uterine pressure exceeds 50 times three times within 10 minutes, it means that the pregnant woman has symptoms of labor, but the expected period has not yet arrived, so pay attention to preserving the fetus. At the same time, I suggest colleagues not to do it after 11 o'clock, because hunger in pregnant women will also affect the results.