Question detail
How do radioactive tracers help in diagnosing medical conditions?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Hazards and uses of radioactive emissions and of background radiation
Question
- A. By destroying harmful cells
- B. By providing images of internal organs
- C. By measuring blood pressure
- D. By sterilising surgical instruments
Answer
The correct answer is B: By providing images of internal organs.
Explanation
The correct answer is B: By providing images of internal organs. This supports the learning objective "Describe how radioactive tracers are used to follow the movement of substances inside the body." in Uses of nuclear radiation because it uses the correct atomic and nuclear radiation relationship for Hazards and uses of radioactive emissions and of background radiation. The other options are less suitable because they do not match the required Uses of nuclear radiation idea: By destroying harmful cells; By measuring blood pressure; By sterilising surgical instruments.
Common mistake
Misunderstanding Radioactive Tracers
Students often confuse the purpose of radioactive tracers with other medical imaging techniques, thinking they are used for direct imaging rather than tracking movement.
Clarify that radioactive tracers are specifically used to follow the movement of substances within the body, highlighting their role in diagnosing conditions by observing how they travel through the system.
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