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A non-stress test is used in pregnant women to evaluate the heart rate of a developing baby (fetus). Normally, a developing baby's heart rate ranges from 100 to 160 beats per minute, and it usually speeds up after the baby moves. If the heart rate is faster or slower than this range or does not speed up after the baby moves, it may mean that the baby is not doing well.
During the test:
A non-stress test usually takes about 30 minutes. It can be done in a hospital or the doctor's office.
Current as of: February 11, 2020
Author: Healthwise Staff
Medical Review:Kathleen Romito MD - Family Medicine & Thomas M. Bailey MD - Family Medicine & Adam Husney MD - Family Medicine & Femi Olatunbosun MB, FRCSC - Obstetrics and Gynecology
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