Nuchal scan accurate dating
As a general guide they may include: Some doctors or ultrasound centres will also offer private scans for a fee.
Your doctor may also offer you additional ultrasound scans at your antenatal appointments so that he can check the health of your baby and rule out any problems.
It's also a good idea to take someone along with you.
Nuchal translucency (NT) is a collection of fluid under the skin at the back of a baby's neck.
The nuchal translucency scan measures the thickness of this fluid to assess the risk of Down's syndrome. If the scan reveals that there is more fluid than usual, it could be a sign of Down's syndrome.
Another sign of Down's syndrome is the shape of the baby's nasal bone.
It is part of the detailed scan you will get in your first trimester.
If the 14 and 22 weeks scans are both normal, the chances of the In addition to visualizing the fetus, the uterine blood flow should be assessed with the Doppler waveform analysis and the cervical length and the internal os of the cervix should be measured.If you have previously miscarried or you have had bleeding in the first few weeks of this pregnancy, you may be offered an early scan between six and 10 weeks.This is to reassure you and end the uncertainty of not knowing how your pregnancy is faring.The anatomy of the fetus is thereforte examined at this stage of pregnancy, to exclude any abnormalities of the skull and brain, arms, legs, stomach, spine, abdomen and bladder.
The majority of pregnancies are normal but in some cases, the baby is born with a chromosomal abnormality such as Down's syndrome.
It's natural to feel a little anxious about having a vaginal scan.