Normal heart rate of a fetus

Normal Heart Rate Of A Fetus. At this point it begins a rapid deceleration to the normal fetal heart rate for mid pregnancy to about 120 180 bpm. It is measurable sonographically from around 6 weeks and the normal range varies during gestation increasing to around 170 bpm at 10 weeks and decreasing from then to around 130 bpm at term. Following this the heartbeat becomes normal and stabilizes between 120 and 160bpm during the second and third trimesters. A fetal heart rate range of 100 160 is considered as normal.

Normal fetal heart rate exhibits fluctuations of approximately 6 to 25 beats minute see fig. Your baby s heart continues to develop during pregnancy. If the heartbeat of the fetus is normal chances of miscarriage are very low. A normal fetal heart rate fhr usually ranges from 120 to 160 beats per minute bpm in the in utero period. A fetal heart rate range of 100 160 is considered as normal. It will then rise and peak around the 9th and 10th week to 170 bpm.

The normal heart rate of a fetus from when it begins to beat around 5 weeks to the end of the first trimester will increase then decrease steadily over this period as mapped out in the table below.

It will then rise and peak around the 9th and 10th week to 170 bpm. Current international guidelines recommend for the normal fetal heart rate fhr baseline different ranges of 110 to 150 beats per minute bpm or 110 to 160 bpm. At this point it begins a rapid deceleration to the normal fetal heart rate for mid pregnancy to about 120 180 bpm. Following this the heartbeat becomes normal and stabilizes between 120 and 160bpm during the second and third trimesters. We started with a precise definition of normality and performed a retrospective computerized analysis of electronically recorded fhr tracings. If the baby s heartbeat is not audible for a week or more miscarriage is likely to happen.