radiation in medicine

    Cards (22)

    • What is radiotherapy used for?
      To treat cancer
    • What are medical tracers used for?
      To detect problems inside the body
    • What type of radiation can damage cells?
      Ionizing radiation
    • How does ionizing radiation affect DNA?
      It can mutate our DNA
    • What happens if cells receive a large enough dose of radiation?
      They can be killed off completely
    • What is radiation sickness?
      Illness from large doses of radiation
    • What are the symptoms of radiation sickness?
      Vomiting, tiredness, and hair loss
    • How can radiation be used positively in medicine?
      To destroy unwanted cells like cancer cells
    • What is the process called that uses radiation to treat cancer?
      Radiotherapy
    • What are the two main methods of delivering radiation in radiotherapy?
      Externally and internally
    • What type of radiation is typically used in external radiotherapy?
      Gamma rays
    • How is internal radiotherapy administered?
      By placing a radioactive source inside the body
    • What type of radiation is usually used in internal radiotherapy?
      Beta radiation
    • What is a downside of radiotherapy?
      Healthy cells can also be damaged
    • How do medical tracers work?
      By tracking radioactive isotopes in the body
    • How can radioactive isotopes be introduced into the body?
      By injection or ingestion
    • Why do we use gamma rays for medical tracers?
      They are less harmful than alpha or beta
    • What is the preferred half-life for isotopes used in medical tracers?
      As short as possible
    • What is the risk-benefit analysis in using radiation?
      Weighing risks against benefits of radiation use
    • Why is it generally worth the risk to use medical tracers?
      They help diagnose diseases effectively
    • Why might some patients refuse radiotherapy?
      If it only extends life briefly
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