Ultrasound

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1. What is an advantage of using Ultrasound waves instead of X-rays for medical scanning?

  • Ultrasound waves are non-ionising and therefore harmless when used for scanning.
  • Ultrasound waves produce better images than X-rays.
  • Ultrasound scanners are cheaper to use than X-ray machines.
  • Ultrasound waves can be used to treat cancerous cells.
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2. What can Ultrasound therapy be used for?

  • Can move kidney stones out of the kidneys without them moving naturally.
  • To ionise cells.
  • To break painful kidney stones into little bits so the fragments are small enough to leave the kidneys naturally.
  • To treat cancerous cells.

3. Why do Ultrasound scans reacquire gel?

  • To attract the ultrasound waves back to the transducer to create an image on the screen.
  • To ensure that there is no air between the ultrasound transducer and the patients skin.
  • To ensure that the ultrasound transducer glides smoothly over the patients skin.
  • To ensure that the ultrasound waves can tell the difference between the air and the patient.

4. What are Ultrasound waves used for?

  • Prenatal scans of a baby in the womb.
  • To detect cancerous cells.
  • To detect broken bones.
  • To treat illness.

5. What, other than medical uses, do Ultrasound waves have?

  • Detecting metal under the sand (metal detectors).
  • Cleaning glass.
  • Detecting oil on the sea bed.
  • Detecting fish in the sea.

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