Radiation in medication

Cards (25)

  • 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 beneficial in medicine?
    It can 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?
    External and internal methods
  • How do external sources deliver radiation?
    By emitting gamma rays targeted at cancer
  • What is the internal method of delivering radiation?
    Placing a radioactive source inside the body
  • What type of radiation is usually used in the internal method?
    Beta radiation
  • Why do both radiotherapy techniques have side effects?
    They can damage healthy cells in the body
  • How do medical tracers work?
    By tracking radioactive isotopes in the body
  • How can radioactive isotopes be introduced into the body?
    By injection or swallowing
  • What is the purpose of tracking the movement of isotopes?
    To check if organs are working properly
  • What radioactive isotope is mentioned for thyroid gland absorption?
    Iodine-131
  • Why are gamma rays preferred for medical tracers?
    They are less harmful than alpha or beta
  • What is the ideal 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 using medical tracers generally worth the risk?
    They help diagnose diseases effectively
  • Why is radiotherapy considered worth the side effects?
    It can save a person's life
  • Why might some people choose not to have radiotherapy?
    If it only extends life briefly
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