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Posted by / 19-Mar-2020 20:18

Are first trimester ultrsounds accurate dating

Crown Rump Length: Gestational age = 6 weeks plus (CRL x days).

For example, a CRL of 23 mm would correspond to a gestational age of 9 weeks and two days (6 weeks plus 23 days = 9 weeks and 2 days).

This test results in a 9095% detection rate of pregnancies that may be at an increased risk of carrying a genetical problem such as Downs Syndrome.

You do not need to have a full bladder, a moderately filled bladder is needed for a proper examination.

Most parents look forward to their scan because it gives them the first glimpse of their baby.

During the examination, the fetus is seen by abdominal ultrasound.

Occasionally the view is not clear and it may be necessary to perform a vaginal scan.

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You will probably be give you a printout of your baby by the sonographer as a keepsake, it is important to remember the main purpose of the scan.