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A CT scan uses X-rays to produce images of the body. Learn about how CT scans work, when they are used, and what to expect during the procedure.

Key points

  • A CT scan uses X-rays and a computer to take “slice-like” pictures of body parts and internal organs.
  • If your child is having sleep medicine for the CT scan, you must follow the rules about what your child can eat and drink before the test.
  • The scan will not hurt. Nothing touches your child. When the scan starts, your child will hear a funny sound.
Last updated: June 4th 2015