Question detail
Explain why the choice of a radioactive isotope for medical use must balance its usefulness and the risk of exposure to radiation.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Hazards and uses of radioactive emissions and of background radiation
Question
Explain why the choice of a radioactive isotope for medical use must balance its usefulness and the risk of exposure to radiation.
Answer
The choice of a radioactive isotope for medical use must consider its effectiveness in diagnosis or treatment while minimizing the patient's exposure to harmful radiation. Isotopes with short half-lives are often preferred as they decay quickly, reducing the duration of exposure, but they must also provide sufficient time for imaging or treatment.
Explanation
This question tests the student's understanding of the importance of balancing the benefits of using radioactive isotopes in medicine against the potential risks associated with radiation exposure. It requires an understanding of half-lives and their implications for safety.
Common mistake
Isotope Selection Confusion
Students often confuse the importance of half-life with the type of radiation emitted when choosing isotopes for medical or industrial use.
Emphasize that both the half-life and the radiation type must be considered to ensure the isotope is useful while minimizing exposure risk.
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