Dating scan how much water to drink
Several measurements are taken to check the baby’s growth and development.The fetus is also assessed for any major anatomical abnormalities (such as problems with the head, limbs, heart and other internal organs).The ultrasound looks specifically at the fluid space at the back of the baby’s neck.If the combined test indicates a higher than normal risk, you will be offered further tests.Ultrasound scans may be recommended at various stages of pregnancy for several reasons. For women in Australia with an uncomplicated pregnancy, the following ultrasound scans may be recommended.A dating scan may be recommended if there is any uncertainty about when conception may have occurred (for example, women who have irregular periods and those who are uncertain of the date of their last menstrual period).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.
In some situations where a problem is detected during ultrasound, there may be treatments that can be undertaken or planned for while you are still pregnant. Royal Australian and New Zealand College of Radiologists. 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.