Exam-style question
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What is the primary method of treatment in external radiotherapy?.
- A.Using radioactive implants placed inside the body
- B.Delivering high-energy radiation from outside the body
- C.Injecting radioactive tracers into the bloodstream
- D.Performing surgery to remove tumors
Model answer
What a good answer should say
- Delivering high-energy radiation from outside the body
Explanation
Why this works
External radiotherapy involves delivering high-energy radiation from outside the body to target tumors, while radioactive implants involve placing sources directly inside the body. External radiotherapy is typically used for larger or more accessible tumors, whereas implants are used for localized treatment.
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