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Non-Stress Test (NST)
About Non-Stress Test (NST)
Non-Stress Test (NST) is a non-invasive prenatal test used to monitor fetal heart rate and its response to movements.
. It helps assess the well-being of the fetus, especially in high-risk pregnancies. The test measures whether the baby’s heart rate increases appropriately with movement, indicating adequate oxygen supply.
Overview
Evaluates fetal health and oxygenation
Monitors fetal heart rate in response to movements
Used in high-risk pregnancies (diabetes, hypertension, etc.)
Helps detect fetal distress or compromised conditions
Often performed in late pregnancy or when reduced fetal movements are noted
Workflow
Step 1: Patient Preparation
Mother is positioned comfortably, usually in a semi-reclining position.
Step 2: Sensor Placement
Two belts are placed on the abdomen—one for fetal heart rate and one for uterine activity.
Step 3: Monitoring
Fetal heart rate and movements are recorded over time.
Step 4: Data Recording
Graph (CTG tracing) is generated showing heart rate patterns.
Step 5: Interpretation
Doctor evaluates reactivity and variability of fetal heart rate.
Step 6: Reporting
Results are documented and explained to the patient.
Benefits & Value
For Patients
Non-invasive and painless monitoring
Provides reassurance about baby’s well-being
Early detection of fetal distress
For Caregivers & Families
Immediate information about fetal health
Reduces anxiety in high-risk pregnancies
Supports safe pregnancy management
For the Community
Promotes safe maternal and fetal care
Reduces risk of complications during pregnancy
Encourages routine prenatal monitoring
Risks & Challenges
- • No significant risks (completely safe for mother and baby)
- • May require repeat testing if results are inconclusive
- • Interpretation depends on clinical expertise
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