Start Ultrasounds and dating pregnancy

Ultrasounds and dating pregnancy

If you have agreed to have screening for Down's syndrome, the dating scan and the screening will usually happen at the same time.

The purpose of the dating scan is to: Some abnormalities may also be detected at this scan, such as neural tube defects (spina bifida is a type of neural tube defect).

This depends on whether you have agreed to have the screening and when the scan takes place.

Screening for Down's syndrome will happen at the dating scan if: The screening test for Down's syndrome used at this stage of pregnancy is called the combined test.

The combined test involves a blood test and measuring the fluid at the back of the baby's neck (nuchal translucency) with an ultrasound scan.

All pregnant women are offered an ultrasound scan at around 8-14 weeks of pregnancy. It's used to see how far along in your pregnancy you are and check your baby's development.

Your midwife or doctor will book you a dating scan appointment.

It will usually take place at your local hospital ultrasound department.

The person performing the scan is called a sonographer.