First Trimester Scans

Early Pregnancy/Viability Scan: It is a very important scan as it confirms the pregnancy and establishes a due date. It is a trans-adominal scan and is performed between 7-11 weeks of pregnancy. It also helps confirm the number of embryos, the presence of a heartbeat and detects internal bleeding, if any.

NT scan: A Nuchal Translucency (NT) scan is an ultrasound that measures the amount of fluid collected under the skin, at the back of the baby’s neck. It is usually done between 11-14 weeks of pregnancy. It helps in determining the risk of Down’s Syndrome.

TransVaginal scan (TVS): It is an internal examination in which the specialist inserts an ultrasound probe of about 2-3 inches inside the vaginal canal. The test is done between 6-10 weeks of pregnancy, and is extremely useful in the diagnosis of ectopic pregnancies, cysts, fibroids, pelvic infections, etc.

Second Trimester Scans

Anomaly scan: Also known as mid-pregnancy scan, the test is usually performed between 18-21 weeks of pregnancy. It checks the development of the baby, and the position of the placenta. Various diseases or conditions like cleft lip, brain injuries, etc, may be determined with the anomaly scan.

Growth Scan: As the name suggests, the scan checks for the baby’s overall growth. Parameters like weight, quantity of amniotic fluid, position of the placenta are also deduced. It is highly recommended when complications have arisen in previous pregnancies, or when medical conditions like diabetes or high blood pressure occur.

Third Trimester Scans

Interval Growth Scan: It is usually performed between 28-32 weeks of pregnancy. The scan studies the biophysical profile of the baby through observing movement of the limbs, stretching and flexing, breathing, and opening and closing of hands. 

Term Scan: Conducted during the 36th week of pregnancy, this final test ensures that the baby is in good health. Doctors check for the exact location of the baby, and for the position of the placenta. The amount of amniotic fluid, etc, are also checked.