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What are X-rays?
Where are they used?
How is an X-ray taken?
Are X-rays safe?
What can be the side effects?
 
Fri,21 Sep 2001 05:30:00 +0530
Written by : DoctorNDTV Team
Checked by :
 
  • What are X-rays?
    What are X-rays?
    Fri,21 Sep 2001 05:30:00
    X-rays are short wavelength rays that can pass through tissues, which are opaque to normal light. They then cast shadows of the dense tissues like bone on special screens and help to study their structures.
  • Where are they used?
    Where are they used?
    Fri,21 Sep 2001 05:30:00
    Though X-rays were first used in physical experiments, their use in medical science began early in the 20th century. Chest X-ray is the most commonly performed radiographic procedure. Other areas where X-rays are used widely are :
  • Bone deformities and fractures
  • Lung diseases like pneumonia
  • Heart abnormalities like congestive heart failure
  • Diseases of the gastrointestinal tract
  • Mammography to detect breast cancer
  • How is an X-ray taken?
    How is an X-ray taken?
    Fri,21 Sep 2001 05:30:00
    Taking an X-ray is an easy and non-invasive procedure. The patient is made to expose the desired part of the body under an X-ray machine. The doctor and technicians then step away to avoid unnecessary exposure to the X-rays. The X-rays are emitted from the X-ray machine and pass through the desired area to hit the photographic film. The rays expose the film much like in a camera.

    When the film is developed, the image of the organ can be seen. The less dense tissues allow more rays to pass through and when the film is developed, these areas emerge darker than the others. More dense tissues like bone appear white. The diseased parts of the organs can then be seen.
  • Are X-rays safe?
    Are X-rays safe?
    Fri,21 Sep 2001 05:30:00
    X-rays are safe if the procedure is performed under controlled conditions. Some precautions may have to be taken while taking an X-ray. The body parts that are not being examined are covered with an apron to prevent unnecessary exposure to the rays. Special precautions are taken to cover the reproductive organs since they are extra sensitive to X-rays.
  • What can be the side effects?
    What can be the side effects?
    Fri,21 Sep 2001 05:30:00
    Though the side effects are minimal, over-exposure to X-rays may damage healthy tissues. Prolonged exposure may cause skin burns or even cancer. Special care is taken during pregnancy since exposure to X-rays may produce abnormalities in the fetus. Over exposure can sometimes cause nausea and vomiting in some people.
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