NST and Fetal Biophysical Assessment

We guide you with scientific data that confirms your baby is safe and thriving inside the womb.

As pregnancy enters its final weeks, one of the most common questions expectant mothers ask is:
“Is my baby doing well inside?”

To answer this question reliably, modern obstetrics uses key monitoring tools — primarily NST (Non-Stress Test) and amniotic fluid assessment, sometimes supported by the Biophysical Profile (BPP) for a more comprehensive evaluation.

When and Why Are NST and Fetal Biophysical Assessments Performed?

These evaluations are typically carried out in the third trimester, starting around the 34th week of pregnancy.
The goal is to monitor the baby’s well-being before birth and to detect potential risks early enough to take preventive action.

Through these tests, clinicians can observe:

  • Whether the baby’s heart rate accelerates appropriately with movement
  • Whether the amniotic fluid volume is within a healthy range
  • Whether the baby shows any signs of stress as delivery approaches

Together, these findings help ensure that decisions regarding the timing and mode of delivery are made safely and accurately.

Assessment Methods

NST (Non-Stress Test)

This test evaluates how the baby’s heart rate responds to movement. Two sensors are placed on the mother’s abdomen to record fetal heart rate and uterine contractions over 20–30 minutes.
If the baby’s heart rate increases with movement, it indicates good oxygenation and a healthy intrauterine condition.

Amniotic Fluid Assessment

An ultrasound measurement is used to determine the Amniotic Fluid Index (AFI).
Both low and high fluid levels can signal potential issues with fetal growth, placental function, or delivery risks, and therefore require close monitoring.

Biophysical Profile (BPP)

When indicated, the BPP combines ultrasound findings and NST results to provide a comprehensive overview of fetal health.
It evaluates:

  • Fetal breathing movements
  • General body movements
  • Muscle tone
  • Amniotic fluid volume
  • Heart rate reactivity

Each category is scored, and the total score reflects the baby’s overall condition in the womb.

Why Is This Evaluation Important?

Fetal well-being assessments are among the safest and most informative ways to determine whether a baby is developing healthily before birth.

These tests help:

  • Detect potential risks early — such as oxygen deprivation or placental aging
  • Optimize delivery timing to ensure the best outcome
  • Provide peace of mind for the mother, especially when fetal movements seem reduced
  • Enable timely intervention, which can be life-saving in critical cases

All procedures are painless, non-invasive, and completely safe for both mother and baby.

If you wish to ensure your baby is thriving inside the womb with complete confidence, book your fetal well-being assessment appointment today.

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