Ultrasound procedure uses high-frequency sound waves to scan pelvic cavity and abdomen of a woman, it then creates a sonogram i.e. picture of the placenta and the baby. An ultrasound scan can be done at any point of pregnancy. Results of pregnancy ultrasound can be viewed immediately on a monitor when the procedure is carried out. Ultrasound scans are helpful to diagnose an ectopic pregnancy, transvaginal scans or molar pregnancy during the early stage of pregnancy.
Now a day’s ultrasounds have become very regular and common as a part of antenatal care. During the early stage of pregnancy ultrasound scans are done to confirm the urine pregnancy tests and to check the fetal heartbeat.
When to have scans depends on how your pregnancy is going. Below given are different types of scans:
Early Scan: During the early stage of pregnancy if a woman is experiencing problems like bleeding in the very first week of pregnancy then it is recommended to undergo an early scan. An early ultrasound scan is usually taken between 6 weeks and 10 weeks of pregnancy. An early scan is carried out vaginally rather than tummy because this type of scan gives a clear picture of your baby during the early.
Dating Scan: When a woman is having normal pregnancy then she undergoes two types of ultrasound scans during her pregnancy. A dating scan is the first scan to undergo. This type of scan is booked at between 10 weeks 13 weeks including six weeks of pregnancy. With the help of dating scan, you will be able to know if you care to carry one baby, twins or more. Also with this scan, you will be able to check the heartbeat of your baby. This type of scan is more accurate for establishing your due date for the birth of your baby.
First Trimester Combined Screening: During the dating scan you will receive a combined screen check for any type of abnormalities. Following are the two types:
Nuchal Translucency Scan: This scan estimates the possibility of your baby having down syndrome. This scan is done on your tummy.
A Blood Test: This test helps to detect the levels of plasma protein-A (PAPP-A) and hormone human chronic gonadotrophic (HCB). Abnormality in the levels can indicate Down’s syndrome.