12-week pregnancy dating scan – Your maternity and infant guide

12-week pregnancy dating scan – Your maternity and infant guide

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All women that are pregnant in England might be offered an ultrasound scan at around 8 to 14 days of maternity. This might be called the relationship scan. It is utilized to see how far along in your maternity you’re and check your infant’s development.

Your midwife or medical practitioner will book that you dating appointment that is scan. It’s going to frequently happen at your hospital ultrasound that is local division. The individual doing the scan is called a sonographer.

You may want to have a complete bladder for this scan, since this makes the ultrasound image better. It is possible to pose a question to your midwife or medical practitioner prior to the scan should this be the outcome. The scan that is dating takes about 20 mins.

Nic Cleave / Alamy Inventory Picture

What’s the intent behind the scan that is dating?

The purpose of the dating scan is to test:

  • Exactly how many weeks pregnant you are and exercise your due date (the estimated date of distribution, or EDD)
  • Whether you are anticipating a lot more than 1 child
  • That the infant keeps growing within the place that is right
  • Your infant’s development

This scan can identify some health problems, such as for instance spina bifida.

Does assessment for Down’s syndrome take place in the scan that is dating?

This relies on whether you’ve got consented to have the assessment so when the scan occurs. Assessment for Down’s problem can happen in the scan that is dating:

  • You have got consented to have assessment when it comes to condition
  • The scan happens between 10 and 14 months of being pregnant

The assessment test for Down’s syndrome utilized at this stage of being pregnant is named the “combined test”. It involves a bloodstream test and calculating the fluid at the rear of the infant’s throat (nuchal translucency) by having a scan that is ultrasound. This really is often called a translucency scan that is nuchal.

The nuchal translucency dimension could be taken throughout the scan that is dating. For those who have consented to have testing for Down’s problem, the dating scan and also the assessment will often take place at exactly the same time.

You will never be provided the combined assessment test if the dating scan occurs after 14 months. Alternatively, you will be provided another bloodstream test between 14 and 20 days of being pregnant to display for the potential for having an infant with Down’s problem. This test is certainly not quite since accurate while the mixed test.

Learn more about:

You can read assessment tests for both you and your infant, from Public wellness England.

Web Page last reviewed: 4 December 2017 Next review due: 4 December 2020

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