What causes slow heart rate in baby during pregnancy?

What causes slow heart rate in baby during pregnancy?

Complete heart block is the most common cause of a persistent slow fetal heart rate. It is a life-threatening condition, placing the fetus at risk of hydrops and heart failure. The condition is usually associated with either a structural fetal heart defect or with maternal autoimmune disease (such as lupus).

Is it normal for baby’s heart rate to fluctuate?

The average fetal heart rate is between 110 and 160 beats per minute. It can vary by 5 to 25 beats per minute. The fetal heart rate may change as your baby responds to conditions in your uterus. An abnormal fetal heart rate may mean that your baby is not getting enough oxygen or that there are other problems.

What are signs of fetal distress?

Fetal Distress Indicators

• Abnormal Heart Rates. Babies who are progressing well in utero will have stable and robust heartbeats.
• Decrease in Fetal Movement.
• Maternal Cramping.
• Maternal Weight Gain.
• Vaginal Bleeding.
• Meconium in the Amniotic Fluid.

Does baby’s heart rate slow down towards end pregnancy?

There is also a slowing of the normal fetal heart rate in the last 10 weeks of pregnancy, though the normal fetal heart rate is still about twice the normal adult’s resting heart rate.

Is a heartbeat of 147 Boy or girl?

The belief is that a heartbeat slower than 140 beats per minute indicates a male baby, while a faster heartbeat indicates a female baby. There is no evidence that this is true.

Is 156 a good heart rate for baby?

Conclusions. Normal ranges for FHR are 120 to 160 bpm. Many international guidelines define ranges of 110 to 160 bpm which seem to be safe in daily practice.

What happens if baby’s heart rate is too high?

If the heart beats too fast, contractions are shallow and not enough blood is pumped with each heartbeat. As a result, the fetus can go into heart failure. The most common form of this condition is called supraventricular tachycardia (SVT), in which the heart rate can be faster than 200 beats per minute.

Is 158 a high heart rate?

Tachycardia is a heart rate higher than 100 beats per minute. A normal resting heart rate is 60 to 100 beats per minute. Ventricular tachycardia starts in the heart’s lower chambers. Most patients who have ventricular tachycardia have a heart rate that is 170 beats per minute or more.