Fetal heart monitoring
Normal Values

Normal values indicate that the fetus is not in distress by showing a fetal heart rate between 120 and 160 beats per minute. A variability of 5 - 25 beats per minute from the baseline (normal) fetal heart rate may occur.

The fetal heart rate may drop slightly during a contraction, since placental blood supply is diminished under the compression of a uterine contraction. This is normal as long as the fetal heart rate recovers quickly once the contraction has stopped.

Review date: May 08, 2008
Reviewed by: Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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