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Two reasons. Firstly, Safety. Fetus have a higher rate of cellular division than the average human being. A damaged gene while still developing can cause birth defects. Secondly, X-rays really only give an idea of bone structure and generally aren't live. It X-rays don't give as clear an indication on lung and heart development.

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What is a prenatal scan?

Typically, a prenatal scan indicates having a sonogram/ultrasound performed. This scan can determine the baby's heart rate, size and weight and is a better predictor of gestational age. After week 20, expectant parents often are able to ascertain the sex of their unborn child through ultrasound.


What is prenatal scanning?

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What is the scan called you get when you are pregnant?

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What all is involved with having an ultrasound scan?

Ultrasound scan requirements vary depending on the type of ultrasound. For example, for a pregnancy ultrasound, the woman is expected to drink 4 glasses of water and not relieve her bladder for an hour before the scan.


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What is the person called who takes an ultrasound scan?

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