Doctor insights on:
Causes Of Low Fetal Heart Rate
Many causes.: Bradyarrhythmias (heart block, hypothyroidism, drugs) can lower the fetal heart rate persistently, however the most common reason is cord or placental accidents that threaten the fetal well-being. Your obstetrician and/or perinatologist should be able to help you avoid this problem. ...Read more
Head compression.: Typically, the fetal heart rate decreases episodically with contractions during the pushing stage of labor as the fetal head is compressed and rapidly descends in the birth canal. Head compression causes a parasympathetic neural discharge that slows the heart rate as long as the intracranial pressure continues. Other causes: cord compression, placental failure can also occur. ...Read more
How are you finding them? Checking at home or on a monitor in the hospital? Either way, go to your closest hospital and get checked to be sure that your baby is doing ok.
Good luck! ...Read more
Thyroid disorders.: The proper answer to your question is that typically the baseline fetal heart rate does not correlate with fetal growth. Rare scenarios where this general statement would not be accurate include severe maternal hypothyroidism or excessive intake of antithyroid medications in hyperthyroid women that subsequently affect the fetus and its growth curves. ...Read more
Low baseline FHR: Low fetal baseline heart rates are usually diagnosed when the rate drops below 120 beats per minute consistently and stays there. Sometimes it is temporary, and sometimes it represents a fetal oxygenation problem. Ask your OB MD, who knows your care, what it exactly means in your case. ...Read more
There is no: Consensus about the normal fetal heart rate. Current international guidelines recommend 110-150 beats/min. Recent german study 2013 from munich concluded the range of 120-160 possibly better. During delivery different guidelines use but 110-160 still normal. ...Read more
Acidosis.: Non-reassuring fetal heart tones include loss of beat to beat or short term variability. They are commonly used to monitor fetal status and determine timing/mode of delivery although they have an exceedingly high false-positive rate in predicting actual neurological impairment in the infant. They can be due to: acidosis; hypoxia; drugs; infection; sleep cycle; dehydration; anemia; thyroidopathies. ...Read more
Probably not good: Heart reflects baby 's health.Get a more detailed answer ›
Today at 10 weeks pg my baby's fetal heart rate was 198 bmp what could cause this? I hadn't had any caffeine? Is everything ok?
Was doc concerned?: Was your doctor concerned with this finding at your visit today? Very specific issues are best dealt with individually. A fast heart rare at ten weeks is not something we usually focus on ...Read more
Fetal heart rate at 5 weeks 6 days was 100. My doctor said this is low...is it really low or does the baby still have a chance?
Stay positive: Above 90, still a good chance. Best Wishes. ...Read more
I'm 20 weeks preg. Had us last week n fetal heart rate was 120 then 68. After 2 days had fetal echo it was 138.Today it was 62 then 72 what cd cause it?
Heart block?: This sounds quite abnormal. You should contact your doctor and ask ask for an explanation. It is possible the ultrasound detected a fetal arrhythmia. Normally this would be discussed in great detail during the visit with the patient though. ...Read more
I'm 5 weeks, 3 days pregnant and an ultrasound showed a fetal heart rate of 104, which the technician said was low. Should I be concerned? Thank you.
Fetal heart: The normal fetal heart rate is considered 120-160, but lower rates above 100 can be normal. A very low heart rate on an ultrasound at 5-6 weeks is worrisome for an impending miscarriage. There is nothing you or your doctor can do about this. The best thing for you to do would be to get weekly ultrasounds for the next 3-4 weeks to make sure the pregnancy is progressing normally. ...Read more
I'm 7 weeks pregnant. What causes fetal heart rate to drop from 122 BPM to 81 BPM in two days after pregnancy looked great?
Hard to say: This question is difficult to answer, because we aren't typically measuring the fetal heartbeat over extended periods of time at this gestational age. Possible technical error. There's not much to do ---> continue to watch the pregnancy. It's normal for fetuses to have cyclic drops in their heartbeat. You may want to consider closer following and possibly an echocardiogram later in pregnancy. ...Read more
Is progesterone level of 14 at 8 weeks too low to sustain pregnancy? Fetal heart rate was detected
Need rate and rhythm: At about 5 weeks the fetal heart is about the same as the mothers (less than 100bpm). By 9-10 weeks the fetal heart rate averages about 175bpm. The fetus may have been under some distress or this may be normal. I would have it checked again at earliest convenience. A uterine U/S can show if the fetal blood supply is adequate. ...Read more
Babies tell us a lot: Monitoring a fetus by fetal hr, ultrasound or the expectant woman's perception of activity is important. No one test can tell us everything we need to know, but together they can tell us which babies might be better off delivered. If a baby is near term and the testing is worrisome then obstetric specialists or subspecialists might deliver. But conditions can change. Plus every case is different. ...Read more
Anomaly: Can't tell you what the person meant who produced what you are quoting but an anomaly in general is an abnormality. ...Read more
No: Don't worry. That is normal for a fetus that size. As the fetus grows heart rate will come down. ...Read more
<110, or >160 bpm.: After the first trimester, the fetal heart rate should fluctuate between 110-160 beats per minute. Arrhythmias (skipped beats, tachy-/brady-arrhythmias) account for most pre-labor abnormal heart rates. Intrapartum fetal heart rate depends on fetal oxygenation and placental perfusion and is used to prevent death of brain injury during labor. Decelerations may be early, variable or late. ...Read more
Fetal heart rate: Just like us, the fetal heart rate varies from moment to moment and the baseline varies as well. The rates you present seem fine. ...Read more
My fetus had a heart rate of 171 BPM at both 8 and 11 weeks. Is this a healthy fetal heart rate at 11 weeks? My baby book says normal range is 120-160
Normal: The average fetal heart rate is between 110 and 160. As early as you are a heart rate of 170 is not a cause for concern ...Read more
Yes: The normal range is 110 to about 180. ...Read more