NT/NB & Pregnancy Screening Support
Crucial chromosomal screening at 11 to 13.6 weeks combining Nuchal Translucency, Nasal Bone presence, and maternal serum biochemistry.
The NT/NB Scan (Nuchal Translucency and Nasal Bone evaluation) is one of the most critical screening examinations during pregnancy, performed precisely between 11 weeks 0 days and 13 weeks 6 days of gestation. This scan assesses the fluid-filled subcutaneous space behind the fetal neck.
Combined with the First Trimester Dual Marker blood test (free Beta-hCG and PAPP-A), the NT/NB scan calculates statistical probability for chromosomal variations, including Down syndrome (Trisomy 21), Edwards syndrome (Trisomy 18), and Patau syndrome (Trisomy 13), as well as major congenital heart anomalies.
NT/NB Screening Highlights
- Strict Fetal Medicine Foundation (FMF) certified NT measurement
- Visualization and presence of the fetal Nasal Bone (NB)
- Ductus venosus blood flow and tricuspid regurgitation check
- Early structural evaluation (limbs, skull, stomach, bladder)
- Uterine artery Doppler screening for preeclampsia risk
- Combined First Trimester Screening with Dual Marker blood test
- Non-Invasive Prenatal Testing (NIPT) genetic counseling
- Compassionate post-result medical explanation and guidance
What to Expect
Precise Micro-Measurement
High-magnification ultrasound focusing specifically on the fetal neck translucency down to fractions of a millimeter.
Combined Risk Analysis
Integrating maternal age, ultrasound parameters, and biochemical blood test values into an audited risk calculation.
Empathetic Counseling
Thorough medical explanation of screening versus diagnostic testing, helping you make informed, confident choices.
Frequently Asked Questions
Common questions answered regarding NT/NB & Pregnancy Screening Support at Prera Women’s Hospital.
Before 11 weeks the fetus is too small for accurate measurement, and after 14 weeks excess fluid is absorbed by the developing lymphatic system.
No. The NT scan is a risk screening tool, not a diagnostic test. An increased measurement indicates the need for further evaluation like NIPT or amniocentesis.
It is a simple maternal blood test analyzing PAPP-A and free Beta-hCG levels, combined with NT scan data to increase detection accuracy up to 90-95%.
NIPT analyzes cell-free fetal DNA circulating in maternal blood, providing over 99% detection accuracy for Down syndrome without any miscarriage risk.
Ready to book NT/NB & Pregnancy Screening Support?
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Call reception +91 82001 16267