A–Z Glossary

Reactive nonstress test

A nonstress test result showing the expected fetal heart rate accelerations during the observation period.

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Non-stress test (NST) and biophysical profile (BPP)

Non-stress test (NST) and biophysical profile (BPP)

What is a non-stress test? A non-stress test, or NST, is a fetal monitoring test that records the fetal heart rate over time, usually along with uterine activity. It is called “non-stress” because it does not intentionally stress the fetus or trigger contractions. Instead, it observes the fetal heart rate pattern under usual conditions. The […]