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Question 32.18: Explain why an ultrasound B-scan, rather than X-rays, is use...

Explain why an ultrasound B-scan, rather than X-rays, is used to examine a fetus.

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X-rays are ionising radiation and hence are damaging to the fetus. Ultrasound carries very little risk because it is not a form of ionising radiation. (The intensity used must not cause heating of the baby’s tissues.)

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Question: 32.21

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Question: 32.WE.3

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