1 doctor weighed in:

What could be the cause of a fast heart rate in a term fetus?

1 doctor weighed in
Dr. Nikolaos Zacharias
Obstetrics & Gynecology - Maternal Fetal Medicine

In brief: Depends.

If the fetal heart rate remains above 160 beats per minute for over 10 minutes, then fetal tachycardia is diagnosed.
This can be due to maternal fever, or fetal hyperthyroidism, cardiac defect, circulatory compromise, excessive fetal activity (benign, transient), cardiac failure, or fetal tachyarrhythmia (atrial flutter, fibrillation, supraventricular tachycardia).

In brief: Depends.

If the fetal heart rate remains above 160 beats per minute for over 10 minutes, then fetal tachycardia is diagnosed.
This can be due to maternal fever, or fetal hyperthyroidism, cardiac defect, circulatory compromise, excessive fetal activity (benign, transient), cardiac failure, or fetal tachyarrhythmia (atrial flutter, fibrillation, supraventricular tachycardia).
Dr. Nikolaos Zacharias
Dr. Nikolaos Zacharias
Thank
Get help from a real doctor now
Dr. Marsha Davis
Board Certified, Internal Medicine
24 years in practice
67M people helped
Continue
108,000 doctors available
Read more answers from doctors