The reason of fetal monitoring failure is: 1. The fetus is in a sleep cycle, and the fetal sleep cycle is 20-40 minutes. If the baseline change of fetal monitoring is small, the fetal monitoring should be reviewed, and the fetal head can be shaken to wake up the fetus during the review. Normal fetal monitoring requires at least 40 minutes of acceleration time.
2. Pregnant women are physically abnormal: pregnant women have fever, hyperthyroidism, drug abuse, etc. It can make the fetal heart baseline exceed 160 beats/min.
3. Fetal intrauterine hypoxia: long-term abnormal fetal heart baseline, too much or too little variation, no acceleration, late deceleration, etc. , suggesting fetal distress.
There are three reasons for failure of fetal heart monitoring: 1. Because the baby is in sleep, when doing fetal heart monitoring, the baby's fetal heart rate may be lower during sleep. At this time, you can exercise properly, and then go to fetal heart monitoring, which may have obvious improvement; 2, umbilical cord around the neck, it is easy to appear in the second and third trimester of pregnancy. When doing fetal heart monitoring, if the umbilical cord is too tight around the neck, it may lead to fetal heart monitoring failure; 3, pregnant women's physical abnormalities, pregnant women's own situation, will also cause changes in the fetal heart rate, such as pregnant women's fever will increase the fetal heart rate, pregnant women's hyperthyroidism will exceed the normal range, pregnant women taking medicine will also cause the fetal heart rate to be too fast or slow down.
The failure of fetal heart monitoring mainly depends on what fetal heart monitoring is. If the baseline of fetal heart monitoring is gentle, there is no obvious acceleration or change, it may be related to the sleep state of the fetus or the hunger of pregnant women, and the possibility of fetal hypoxia cannot be ruled out. If there is early deceleration or synchronous deceleration in fetal heart monitoring, it is suggested that it is related to umbilical cord compression. After stimulating fetal movement, you can push your abdomen or change your position to review fetal heart monitoring.
Suggestion: Keep a happy mood during pregnancy, eat more fruits and vegetables rich in cellulose, and eat less spicy, cold and other irritating foods. Pay attention to diet, control diet, exercise properly and keep your body flexible after the third trimester.