Immediate peace of mind
A reactive NST confirms that your baby's heart rate responds appropriately to movement – a sign of good oxygenation and neurological function.
The Non-Stress Test (NST) is a simple, non‑invasive, and painless fetal monitoring test that evaluates your baby's heart rate in response to its own movements. A healthy, well‑oxygenated baby will typically have a normal heart rate with periodic accelerations (increases) during movement – this is a "reactive" or reassuring NST. The test is widely used in the third trimester to assess fetal wellbeing, especially in high‑risk pregnancies, and to provide peace of mind for expectant mothers.
Unlike the Contraction Stress Test (CST), the NST does not involve any artificial stimulation of contractions. It relies on the baby's natural movements, making it more comfortable and convenient. The test is performed using a fetal monitor with an ultrasound transducer placed on your abdomen to record the baby's heart rate, and a button for you to press whenever you feel the baby move.
At Amytri Diagnostics, we perform NST using state‑of‑the‑art fetal monitors with advanced analysis features. The test is interpreted by experienced obstetricians who provide immediate feedback. If the NST is non‑reactive, further evaluation may be recommended – but the majority of NSTs are reassuring, giving you confidence that your baby is thriving.
A reactive NST is a strong indicator of fetal wellbeing. It provides immediate reassurance that your baby is healthy and coping well – reducing anxiety and supporting informed decisions about your pregnancy care.
A reactive NST confirms that your baby's heart rate responds appropriately to movement – a sign of good oxygenation and neurological function.
If the NST is non‑reactive, it may indicate fetal compromise – prompting further tests (BPP, CST) or interventions to ensure your baby's safety.
For women with diabetes, hypertension, or other complications, NST is a key tool to monitor fetal wellbeing and guide delivery timing.
We provide high‑quality NST with advanced equipment and expert interpretation – ensuring you receive the most accurate assessment of your baby's wellbeing.
Routine NST performed in the third trimester – typically 20–40 minutes, recording heart rate and accelerations in response to fetal movements.
If the baby is asleep or the trace is non‑reactive, we may extend the test to 60 minutes or use acoustic stimulation to wake the baby.
Combining NST with ultrasound assessment of amniotic fluid volume – a quick and effective way to assess fetal wellbeing.
For high‑risk pregnancies, weekly or twice‑weekly NSTs may be recommended to track fetal wellbeing over time.
Our obstetricians interpret NST traces using standardised criteria (ACOG guidelines) – providing immediate feedback and recommendations.
When indicated, we combine NST with ultrasound (amniotic fluid, fetal breathing, movement, tone) for a complete assessment.
Your obstetrician will recommend NST based on your pregnancy stage and risk factors. Contact us to schedule your test at a convenient time.
No special preparation is required. You can eat and drink normally – a light snack may actually help the baby move. Empty your bladder for comfort and wear loose‑fitting clothing.
You lie comfortably on a couch. An ultrasound transducer is placed on your abdomen to monitor the baby's heart rate. You will be asked to press a button whenever you feel the baby move. The test takes 20–40 minutes.
The NST trace is interpreted immediately by an obstetrician. You receive instant feedback on your baby's reactivity – reassuring if reactive; further evaluation if non‑reactive.
It is a key tool for monitoring fetal wellbeing in the third trimester, especially in high‑risk pregnancies.
If you have diabetes, hypertension, pre‑eclampsia, or other medical conditions, NST is essential for monitoring fetal wellbeing.
If you notice a reduction in your baby's movements, NST can assess whether the baby is in distress and reassure you.
NST is performed to assess fetal wellbeing when the pregnancy goes beyond the expected due date, guiding decisions about induction.
NST helps monitor growth‑restricted babies for signs of distress or oxygen deprivation.
NST is used to monitor each baby in multiple pregnancies, especially if complications are present.
Some obstetricians recommend NST as a routine screening test for all pregnancies starting at 32 weeks or earlier if risk factors are present.
Dr. Abhishek oversees NST services at Amytri, ensuring every test is performed and interpreted with the highest standard of care. He works closely with obstetricians to provide timely feedback and, when needed, recommend further steps – ensuring the wellbeing of both mother and baby.
NST is a comforting and reassuring test – having your partner with you makes it even more special as you both listen to your baby's heartbeat.
We welcome partners during the NST session. They can sit with you, watch the trace, and share the joy of hearing your baby's heartbeat.
An NST is a non‑invasive fetal monitoring test that records your baby's heart rate in response to its movements. A reactive NST (accelerations with movement) is a reassuring sign of fetal wellbeing.
Yes, NST is completely safe. It uses ultrasound to monitor the baby's heart rate, which has no known risks. The test is non‑invasive and does not involve any radiation or medication.
A standard NST takes 20–40 minutes. If the baby is asleep, it may take longer or be repeated later.
No special preparation is needed. You can eat and drink normally – a light snack may encourage the baby to move. Empty your bladder for comfort and wear loose clothing.
NST is recommended in high‑risk pregnancies (diabetes, hypertension, IUGR), for decreased fetal movements, post‑term pregnancies, multiple pregnancies, and sometimes as routine screening in the third trimester.
A non‑reactive NST means the baby's heart rate did not show the expected accelerations with movement. This may be due to the baby sleeping, maternal medications, or fetal distress. Your obstetrician will interpret the results and may recommend further testing (extended NST, Biophysical Profile, or Contraction Stress Test).
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