Inpatient Obstetric Nurse Practice Exam 2026 – Complete Prep Guide

A non-stress test (NST) primarily focuses on assessing the fetal heart rate in relation to fetal movements, which is why measuring the fetal heart rate in response to those movements is a key feature of this test. The NST is used to evaluate fetal well-being, particularly in high-risk pregnancies. During the test, the fetal heart rate is monitored, and a healthy, reactive NST is indicated by increases in the heart rate corresponding with fetal movements.

This response indicates a well-functioning autonomic nervous system in the fetus and is associated with adequate oxygenation and well-being. A non-reactive NST, where the heart rate does not increase with movement, may suggest potential issues, warranting further investigation.

While monitoring maternal health, assessing uterine contractions, and evaluating amniotic fluid levels are important aspects of obstetric care, they are not the focus of a non-stress test. Instead, those aspects would be evaluated through different assessments and tests during pregnancy.