Radiography and Radiology
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Questions and Answers

What is an enema?

  • A type of X-ray used to diagnose disease
  • A type of radiation therapy
  • A liquid introduced into the bowel through the anus (correct)
  • A medical instrument used for surgery

    • What are repeated X-rays used to measure?

  • The patient's height
  • The patient's weight
  • The effectiveness of treatment
  • The progress of a disease (correct)

    • What happens to an X-ray image if a patient moves during the procedure?

  • The image disappears
  • The image becomes blurred (correct)
  • The image becomes clearer
  • The image remains the same

    • When is it easier to see abnormalities in the lungs?

    <p>When the lungs are deflated</p> Signup and view all the answers

    What is the term for a technician who administers X-rays?

    <p>Radiographer</p> Signup and view all the answers

    What is the term for something that is not penetrable by radiation?

    <p>Radioopaque</p> Signup and view all the answers

    What is the term for using radiation to diagnose and treat disease?

    <p>Radiology</p> Signup and view all the answers

    What is the term for something that is penetrable by radiation?

    <p>Radiolucent</p> Signup and view all the answers

    What is the term for the process of breathing?

    <p>Respiration</p> Signup and view all the answers

    What is the term for a medical action intended to improve a patient's condition?

    <p>Therapeutic</p> Signup and view all the answers

    Study Notes

    Radiography and Radiology

    • Radiography involves exposing a part of the body to a small dose of radiation to produce an image of internal organs.
    • Organs with high density, such as ribs and spine, are radiopaque, meaning they don't absorb radiation, and appear white or light grey on the image.
    • Lung tissue is radiolucent, absorbs radiation, and appears dark on the image.
    • Contrast medium, such as barium or iodine, is used to examine organs or tissue it fills.
    • Radiology is the use of radiation in the diagnosis and treatment of diseases, such as cancer.

    X-ray Examination

    • Chest X-ray is the commonest diagnostic X-ray examination.
    • A frontal (anteroposterior) view is obtained with the patient standing facing the photographic plate.
    • The patient is asked to breathe in deeply and not to breathe out to prevent a blurred image.
    • A side, or lateral view, is obtained with the patient standing sideways to the photographic plate with arms raised.
    • Chest X-rays may be repeated at intervals to track changes, known as serial chest X-rays.

    Computed Tomography (CT)

    • CT uses an X-ray source that rotates around the body to produce cross-sectional images.
    • The new scanner takes up to 16 simultaneous cross-sectional images (slices) and transmits more data in less time.
    • Each slice can be less than one millimeter thick, making it possible to find very small abnormalities.
    • CT scanner is used for diagnosing muscle and bone disorders, locating tumors, infections, and clots, monitoring the progress of malignant diseases, and providing accurate guidance for interventional procedures.

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    Description

    Learn about radiography and radiology, including the principles of X-ray imaging, radiopaque and radiolucent materials, and contrast agents.

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