If you are looking for an NT scan in Kolkata, understanding when to get the scan and what it checks can help you prepare for this important stage of pregnancy. A nuchal translucency (NT) scan is a first-trimester ultrasound that measures the fluid-filled space at the back of the developing baby’s neck.
At Sparsh Diagnostic Centre, Bansdroni, Kolkata, we provide pregnancy ultrasound services to support prenatal assessment. If your obstetrician has recommended an NT scan, our team can guide you regarding appointment availability and preparation.
What is an NT scan?
An NT scan, also known as a nuchal translucency scan, is performed during early pregnancy to measure the fluid behind the baby’s neck. This measurement helps assess the risk of certain chromosomal conditions, including Down syndrome, Edwards syndrome and Patau syndrome.
The measurement is interpreted alongside factors such as gestational age and maternal age. Depending on the screening approach, your doctor may also recommend blood tests or non-invasive prenatal testing (NIPT).
It is important to remember that an NT scan is a screening test, not a diagnostic test. An increased measurement does not automatically mean that the baby has a chromosomal condition.
When should you get an NT scan?
The NT scan is generally performed between 11 weeks and 13 weeks and 6 days of pregnancy, when the baby’s crown-rump length is usually between 45 mm and 84 mm.
Getting the scan within this window is important because the measurement becomes less suitable for standard NT screening outside the recommended period. If you are approaching 14 weeks, consult your obstetrician promptly.
What does an NT scan check?
An NT scan helps assess:
- Nuchal translucency: The fluid-filled space at the back of the baby’s neck.
- Early fetal development: Certain features that can be assessed during the first trimester.
- Pregnancy dating: Fetal measurements that help estimate gestational age.
- Number of babies: Whether the pregnancy involves one baby or multiples.
- Risk of chromosomal conditions: When the measurement is interpreted alongside other relevant screening factors.
The scan cannot identify every genetic condition or structural abnormality. Your doctor may recommend additional screening based on your medical history and results.
How is an NT scan performed?
An NT scan is usually performed through the abdomen. A sonographer applies ultrasound gel and moves a probe gently over the abdomen to obtain images of the baby.
The examination often takes around 15–30 minutes, although the duration can vary depending on the baby’s position and the images required. Occasionally, additional imaging or a repeat appointment may be needed to obtain suitable measurements.
The procedure uses ultrasound sound waves and does not involve ionising radiation.
How to prepare for an NT scan
Preparation is usually simple:
- Carry your doctor’s prescription and previous ultrasound reports.
- Know your current pregnancy week and last menstrual period date, if available.
- Follow the diagnostic centre’s instructions regarding bladder fullness.
- Wear comfortable clothing that allows easy access to your abdomen.
- Ask your doctor whether any first-trimester blood tests are required.
Fasting is generally not required for an NT scan alone unless you have received different instructions for another test.
What do NT scan results mean?
An NT measurement within the expected range can be reassuring, but it does not rule out every chromosomal or structural condition.
An increased measurement may indicate a higher risk of certain chromosomal conditions or other developmental concerns. Your obstetrician may recommend further screening, genetic counselling or diagnostic tests, depending on the findings.
Do not interpret the result in isolation. Your doctor will consider the complete screening assessment before advising you on the next steps.
NT scan vs. anomaly scan
An NT scan and an anomaly scan are performed at different stages of pregnancy and serve different purposes.
The NT scan is generally performed between 11 weeks and 13 weeks and 6 days. It contributes to early pregnancy risk assessment.
The anomaly scan is usually performed around 18–22 weeks and examines the baby’s anatomy in greater detail, including the development of major organs and body structures.
Neither scan replaces the other. Follow the ultrasound schedule recommended by your obstetrician.
NT scan cost in Kolkata
The cost of an NT scan in Kolkata varies between diagnostic centres depending on the services included and the type of examination required.
For the current NT scan price at Sparsh Diagnostic Centre, contact our centre directly. Confirm the appointment availability and whether any additional screening tests are charged separately.
Where to get an NT scan in Kolkata?
Sparsh Diagnostic Centre provides pregnancy ultrasound services at its Bansdroni centre in South Kolkata.
Sparsh Diagnostic Centre
231/1 Netaji Subhas Chandra Bose Road, Naktala, Bansdroni, Kolkata – 700047.
For appointments: 9830117733 or 8335049501.
Contact us to confirm availability, pricing and preparation instructions before your visit. You can also explore our related pregnancy ultrasound services, including [anomaly scan] and [fetal echocardiography], to learn more about other scans recommended during pregnancy.
Frequently asked questions
Is an NT scan necessary for every pregnancy?
Your obstetrician can explain the available first-trimester screening options and advise which tests are appropriate for your pregnancy.
Is an NT scan painful?
No. The abdominal ultrasound is generally painless, although you may feel mild pressure from the probe.
Can an NT scan confirm Down syndrome?
No. It estimates risk but cannot confirm or exclude Down syndrome on its own. Additional testing may be recommended when indicated.
Can I get an NT scan after 14 weeks?
The standard NT screening window generally ends at 13 weeks and 6 days. If you miss this window, consult your obstetrician about alternative screening options.
Can an NT scan determine the baby’s sex?
The NT scan is not intended for sex determination. Prenatal sex determination and disclosure are prohibited by law in India.
Choose informed prenatal care. If your doctor has recommended an NT scan in Kolkata, contact Sparsh Diagnostic Centre to enquire about appointments and preparation.
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