How accurate are dating scans in pregnancy

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Sometimes women are referred for blood testing by their family doctors before they have found/chosen an Many tests that can be performed during pregnancy, including listening to your baby’s heartbeat, use ultrasound. It has not been shown to be harmful to pregnant women or their growing babies, but neither has it been proven to be safe.Some people are concerned that exposure to ultrasound, especially during the first 12-14 weeks of pregnancy when the baby’s major organ systems are being formed, could cause subtle changes or damage.Ultrasound scanning is not 100% accurate for any condition or measurement.Many parents find ultrasound scans reassuring and entertaining – however if you choose to have a scan you need to be prepared for the possibility that the information it reveals about your baby that may not be so reassuring.

Ultrasound scans use sound waves to build a picture of the baby in the womb.

For many women, ultrasound scans are the highlight of pregnancy.

It's very exciting to "see" your baby in the womb, often moving his or her hands and legs.

Others worry that the effects of ultrasound exposure may not show up until later in the child’s life or even in the next generation, particularly when female fetuses are scanned, because they already carry all their ova/eggs for the next generation.

Many women/couples expect that regular ultrasound scans are a routine part of pregnancy care.

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