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Basics of Radiation

by Hetal Verma, MD
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      Slides DLM Intro Imaging Radiography.pdf
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    About the Lecture

    The lecture Basics of Radiation by Hetal Verma, MD is from the course Introduction to Imaging. It contains the following chapters:

    • Ionizing Radiation
    • Effects, Risk and Protection of Radiation

    Included Quiz Questions

    1. If the leukemia is related to radiation exposure, this would be a stochastic effect.
    2. If the leukemia is related to radiation exposure, this would be a deterministic effect.
    3. The leukemia is linked to radiation exposure.
    4. The leukemia is not related to radiation exposure since the exposure occurred at a late gestational age.
    5. The mother should not have undergone any imaging due to the possibility of radiation effects on the fetus.
    1. Scatter
    2. Absorbed
    3. Transmitted
    4. Resorbed
    5. Deflected
    1. Ultrasound
    2. Cosmic radiation
    3. X-ray
    4. Soil
    5. Radon
    1. It results in skin erythema, cataract and sterility.
    2. It is dose independent.
    3. Increasing the dose increases the probability of its biological effect.
    4. There is no set threshold dose for the effect to occur.
    5. It can lead to the development of cancers.
    1. Fetal demise
    2. Microcephaly
    3. Mental retardation
    4. Childhood malignancies
    5. Urinary tract anomalies
    1. Use lead shielding for the family member of radiologists and technologists so as to prevent transmitting radiation.
    2. Follow ALARA - as low as reasonably achievable.
    3. All radiologists and technologists must be monitored by a film badge which shows the amount of radiation that the person is receiving.
    4. Use lead shields during the exposures.
    5. Design rooms with shields.

    Author of lecture Basics of Radiation

     Hetal Verma, MD

    Hetal Verma, MD


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