What is normal for fetal heart rate monitoring?

The full name of fetal heart monitoring is fetal heartbeat, fetal movement and contraction chart, which is an analytical chart that uses special mechanical equipment to record the fetal heart rate. It is one of the main test methods to accurately judge the growth and development of the fetus in the uterine cavity. You can choose to go to the hospital for monitoring or buy equipment to monitor it yourself at home. I believe that many parents will not look at the monitoring results to analyze the baby's growth and development, so what is the normal score of fetal heart monitoring?

Fetal heart rate monitoring is normal

Fetal heart rate monitoring standard value

Fetal heart rate monitoring plays an important role in reducing the mortality rate of fetal intrauterine hypoxia and promptly dealing with fetal heartbeat abnormalities. Fetal heartbeat abnormalities are the main signs of fetal intrauterine hypoxia. If the level of intrauterine hypoxia is severe during fetal heart rate monitoring, the fetal heartbeat abnormalities will be more serious. A fetal heart rate monitoring score of nine is normal, with the highest score being ten. If the fetal movement is excessive and frequent, there is a possibility of intrauterine hypoxia in the fetus. It is recommended to undergo fetal B-ultrasound and other corresponding examinations and diagnoses.

The efficacy of fetal heart rate monitoring

Fetal heart rate monitoring is an important test method to evaluate whether the condition of the fetus in the uterine cavity is normal. It plays an important role in detecting abnormalities in fetal heartbeat and reducing fetal mortality.

During the fetal heart rate monitoring process, if the fetal heart rate is abnormal, in addition to being caused by fetal intrauterine hypoxia, it may also be that the pregnant woman has taken some special drugs, causing the fetal heart rate to be abnormal. If this situation is eliminated and the fetal heart rate is still slow, the expectant mother should do a detailed examination to see if the baby has congenital heart disease.

Fetal heart rate monitoring score

Fetal heart rate monitoring is the general name for fetal heartbeat, fetal movement and uterine contraction graphs. It uses ultrasonic principles to test the waveform of fetal heart rate and uterine contraction pressure.

1). Fetal heart rate baseline (bpm): less than 100 or more than 180 is 0 points; 100-119 or 161-180 is 1 point; 120-160 is 2 points.

2). Genetic variation of fetal heart rate (bpm): less than 5 points for 0 points; 5-10 points for 1 point; more than 10 points for 2 points.

3). Fetal heart rate growth rate (bpm): less than 5 is 0 points; 5-10 is 1 point; more than 10 is 2 points.

4). Fetal heart rate deceleration: repeated terminal deceleration or repeated genetic variation deceleration is 0 points; genetic variation deceleration is 1 point; no or early deceleration is 4 points.

The scores of items 1) to 4) are summed up, with ≤4 points indicating a positive score; 5 to 7 points indicating an abnormal score; and 8 to 10 points indicating a negative score. Fetal heart rate monitoring of 8 to 10 minutes is considered normal. If there is abnormal fetal heart rate monitoring, some protective measures can be taken under the guidance of a doctor.

There are two curves on the fetal heart rate monitoring chart, one records the changes in the fetal heart rate, and the other records the uterine contraction status. Under normal circumstances, the fetal heart rate is maintained at 120~160 beats/minute. The fetal heart rate is faster when the fetus is moving than when it is resting (at least 15 beats per minute), and it lasts for at least 15 seconds. This normal situation is called "fetal heart rate monitoring response type", which is the result that every expectant mother hopes to obtain.

If the fetal heart rate does not increase when the baby moves, or there is no fetal movement at all during the fetal heart monitoring period, this indicates that the fetal condition may be abnormal (such as lack of oxygen or embryo problems, etc.). This situation is called "unresponsive type" and the pregnant woman needs to do another fetal heart monitoring after 1 hour, or do other further examinations.