The Ultrasound NT Scan, also known as Nuchal Translucency Scan, is a prenatal test performed during the first trimester of pregnancy, usually between 11 and 14 weeks. It’s an ultrasound-based diagnostic examination that measures the size of the clear space in the tissue at the back of the developing baby's neck. This measurement can help to assess the risk of Down syndrome and other chromosomal abnormalities, as well as major congenital heart problems in the baby.
This test is a non-invasive procedure that uses sound waves to produce images of the fetus. The Nuchal Translucency Scan is often done as part of a first trimester screening, which may also include a blood test to provide more information regarding the baby’s risk for chromosomal abnormalities.
Note: Home Sample Collection is only for Pathology lab tests.
Before the Procedure: You don’t need to fast before an NT scan, but you may be asked to come with a full bladder as it can help to get clearer images.
During the Procedure: You will lie down on an examination table, and a sonographer will apply a special gel on your abdomen. This gel helps to conduct sound waves. The sonographer will then move a handheld probe over your abdomen to capture images of your baby.
Allergies and Health Conditions: Inform your doctor if you have any allergies, especially to ultrasound gel. However, this is very rare.
Medications: Typically, you don't need to take any special medications before an NT scan.
An NT scan is performed to assess the risk of Down syndrome and other chromosomal abnormalities, as well as congenital heart defects in a developing baby. It's part of the routine prenatal screening.
Yes, an NT scan is considered safe for both the mother and the baby. It uses ultrasound waves and does not involve radiation or invasive procedures.
The procedure usually takes about 15 to 20 minutes.
You do not need to do much preparation. However, your doctor may ask you to come with a full bladder, which sometimes helps in obtaining a clearer image.
The NT scan measures the clear space in the tissue at the back of the baby’s neck. An increased fluid space can be associated with chromosomal abnormalities.
No, the NT scan can only assess the risk of chromosomal abnormalities. If the scan shows a higher risk, your doctor may recommend further diagnostic tests like amniocentesis or chorionic villus sampling.
During the NT scan, you will lie on your back while a sonographer applies gel on your abdomen and moves an ultrasound probe over it to take images of your baby.
If your NT scan shows an increased risk of chromosomal abnormalities, your doctor will discuss the results with you and may recommend additional tests or consultations with a specialist.
The NT scan is not mandatory. It’s a personal choice whether or not to have the scan. Your doctor can provide you with information to help you make an informed decision.
Yes, you can have an NT scan if you are carrying twins or multiple pregnancies.
Yes, there are other screening tests such as cell-free DNA testing. There are also diagnostic tests like chorionic villus sampling and amniocentesis, which can give more definitive information about chromosomal abnormalities.
The results of your NT scan will typically be sent to the doctor who requested the scan. Your doctor will then go through the results with you.
The NT scan primarily focuses on measuring the nuchal translucency to assess the risk of chromosomal abnormalities. However, it can sometimes detect certain physical abnormalities.
In case of abnormal findings, it is advisable to consult a maternal-fetal medicine specialist or a genetic counselor for more in-depth counseling and guidance.
Factors such as the age of the mother, the gestational age of the fetus, and family history can affect the results of the NT scan.
Having an NT scan can be an important part of your prenatal care. It helps in early detection of potential risks and allows for early intervention or preparation. It’s important to remember that an NT scan is a screening test and not a diagnostic test. Always consult your doctor for advice and information regarding the benefits and limitations of the NT scan. Your doctor will provide guidance and support, whatever the outcome may be.