Understanding Genetic Tests During Pregnancy: Dual Marker, NT NB Scan, Quad Marker, and NIPT Today, let’s break down some important genetic screening tests and their significance during pregnancy. What Are These Tests? • Tests like Dual Marker, NT NB Scan, Quad Marker, and NIPT are designed to detect the probability of genetic syndromes, such as Down Syndrome or Edwards Syndrome, in the baby. • These are screening tests, not diagnostic tests. They assess risk ratios, such as: • “1 in 1 lakh chan

NTSCAN/ NB SCAN is a screening test ultrasound done between 11-14 weeks of gestation, Radiologist take thickness of nuchal translucency , a tissue behind neck of baby , Normally NT should be less than 3.0 mm, if it is more than 3.5 mm, double marker test is advised to rule out any chromosomal anomalies as Down syndrome. #ntscan✔️ #ntnbscan #ntultrasound #pregnancyscan #pregnancy3months #preggo #sonography @ drshikhaagarwal | Dr home - Dr shikha Agarwal