Your baby's heart rate does not get slower (decelerate) and stay slow after the contraction (late decelerations). Note: There may be a few times during the test when your baby's heart rate decelerates, but it doesn't stay slow so it is not a problem.
If three contractions occur during a 10-minute period of nipple stimulation or oxytocin infusion and there are no late decelerations in your baby's heart rate, your baby is expected to be able to handle the stress of labor.
Abnormal test results are called positive.
Your baby's heart rate gets slower (decelerates) and stays slow after the contraction (late decelerations). This happens on more than half of the contractions.
Late decelerations may mean that your baby will have problems during normal labor.
What Affects the Test
Reasons you may not be able to have the test or why the results may not be helpful include: