Which test should be done to check for fetal oxygen deficiency?
Aug 11, 2023
Source: Cainiu Health
Dr. Lv Aiming
Introduction
Generally, due to concerns about fetal hypoxia, it is necessary to go to a正规 hospital for examinations such as fetal movement counting, fetal heart rate monitoring, amniotic fluid index assessment, uterine height measurement, and ultrasound. In summary, if concerned about fetal hypoxia, one can directly visit a正规 hospital for the relevant tests. However, it is important to consult with a professional doctor to determine the most appropriate method.
Generally, due to concerns about fetal hypoxia, it is recommended to visit a正规 hospital for examinations such as fetal movement counting, fetal heart rate monitoring, amniotic fluid assessment, uterine height changes, and ultrasound (B-mode sonography). The details are as follows:
1. Fetal Movement Counting
Fetal movement refers to the physical movements of the fetus, which gradually increase with gestational age. After 28 weeks of pregnancy, pregnant women should perform fetal movement counting to self-assess the intrauterine condition of the fetus. Normally, the average number of fetal movements is 3–5 times per hour. Excessively frequent, infrequent, or absent fetal movements may indicate possible intrauterine hypoxia.
2. Fetal Heart Rate Monitoring
The normal fetal heart rate ranges between 110 and 160 beats per minute. A rate below 110 or above 160 beats per minute may suggest fetal hypoxia, requiring timely interventions such as oxygen therapy.
3. Amniotic Fluid Assessment
Doctors may evaluate the amniotic fluid through procedures like amniocentesis or amniotic fluid sampling. Certain indicators in the amniotic fluid—such as pH level, oxygen saturation, and lactate concentration—can provide clues about the fetus's oxygen supply.
4. Uterine Height Changes
After 28 weeks of gestation, the height of the uterine fundus typically increases by approximately 1 cm per week. If a pregnant woman notices no change in uterine fundal height over two consecutive weeks, intrauterine fetal hypoxia should be considered.
5. Ultrasound (B-scan)
Scheduling an ultrasound examination helps assess fetal size, developmental progress, and changes in amniotic fluid volume and fetal heart rate. Both abnormally fast and slow fetal heart rates may indicate a risk of hypoxia. Intrauterine growth restriction or stagnant fetal growth may also be caused by fetal hypoxia.
In summary, if concerned about fetal hypoxia, individuals should go directly to a正规 medical facility for appropriate evaluations. It is important to consult with a healthcare professional to determine the most suitable testing method. If test results indicate a risk of hypoxia, prompt and appropriate interventions should be taken to improve the situation.
