Obstetric nuchal dating scan

Obstetric (Pregnancy)

Back to Your pregnancy care. Ultrasound scans use sound waves to build a picture of the baby in the womb. The scans are painless, have no known side effects on mothers or babies, and can be carried out at any stage of pregnancy. Talk to your midwife, GP or obstetrician about any concerns you have. Having a scan in pregnancy is usually a happy event, but be aware that ultrasound scans may detect some serious health conditions. It's your choice whether to have screening. Your midwife can discuss your options with you.

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Is the ultrasound scan safe for your baby? What is a 3D scan? Your first ultrasound scan should be performed in your first trimester of pregnancy. In a usual situation, the scan will show the early pregnancy sac in the womb with the fetus within the sac. This can be seen as early as 5 to 6 weeks of pregnancy. Visualising the pregnancy in the womb is reassuring, because it confirms that it is in the right location. Sometimes, your doctor may use a vaginal probe for the scan when your pregnancy is about 5 to 6 weeks.

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For all Obstetrics scans, no special preparation is needed, although it is best to wear loose clothing that can easily be lifted or removed in order to expose your abdomen. You will lie on your back on an examination couch and the transducer moved back and forth across your stomach in order to gain the best possible image of the fetus. Ultrasound imaging in pregnancy is widely used to evaluate the baby. It can determine if a baby is present, the position of the fetus and if there is a multiple pregnancy.

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Ultrasound scans in pregnancy

Below are the common scans performed during the course of a pregnancy. Additional scans may be referred at any time during the course of your pregnancy to check the wellbeing of the baby and mother. A dating scan is performed around week 8 of pregnancy but can be done as early as 5 weeks.

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