Dating scan how much water to drink
This means that instead of moving the transducer device over the skin of your abdomen, a narrow device is gently inserted into the vagina to take images of the baby.
The sonographer (the health professional performing the ultrasound scan) may show you some of the images of your baby on the screen, and may also print some of the images for you.
Pregnancy ultrasounds offer an opportunity to check that your pregnancy is progressing as expected and that your baby is healthy. An alpha-fetoprotein (AFP) test is a blood test that can show whether your fetus has signs of some birth defects, in particular, spina bifida (a type of neural tube defect) or chromosome abnormalities.
Many people feel reassured to see images of their developing baby. Royal Australian and New Zealand College of Radiologists. Congenital heart defects are problems with the structure of the heart that are present from birth. In Australia, as many as one baby in 100 is born with a heart defect.
At this stage of pregnancy, the sex of the baby can often be determined.
However, if the genital area is difficult to visualise due to the baby’s position, it can be difficult to tell whether the baby is a boy or a girl.
Your doctor or the ultrasound clinic or hospital where you are having the scans will give you instructions on how long before the test you should drink the water, and how much to drink. You may feel a small amount of discomfort associated with having a full bladder, or when having a transvaginal ultrasound.
A nuchal translucency scan (also called a first trimester pregnancy screening scan) is usually offered to pregnant women between 11 and 13 weeks.
This scan is done in combination with blood tests to determine the baby’s risk of having certain chromosomal abnormalities, such as Down syndrome.
Sometimes other problems can also be detected on ultrasound at this stage of pregnancy.
The 18 to 20 week pregnancy screening scan, also called an anomaly scan, is recommended to check the developing baby.