Question detail
What factors must be considered when choosing a radioactive isotope for medical use?
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
What factors must be considered when choosing a radioactive isotope for medical use?
Answer
When choosing a radioactive isotope for medical use, factors such as the type of radiation emitted, the half-life of the isotope, and the potential exposure risk to the patient must be considered. The isotope should emit radiation that is suitable for imaging or treatment while minimizing harm to healthy tissues.
Explanation
This question assesses the ability to evaluate multiple factors affecting the choice of radioactive isotopes. A comprehensive answer shows an understanding of the balance between effectiveness and safety in medical applications.
Common mistake
Misunderstanding Half-Life Duration
Students often confuse the concept of half-life with the total time a radioactive isotope remains active, thinking that a longer half-life means the isotope is active for a longer period overall.
Clarify that half-life is the time taken for half of the radioactive atoms in a sample to decay, and that isotopes with longer half-lives can still remain detectable for extended periods, but their activity decreases gradually.
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