VIII.3. Nuclear Medicine: Diagnosis and Therapy (LO 7)

1) What is the primary purpose of Diagnostic Reference Levels (DRLs) in nuclear medicine?

• A) To set legal dose limits

• B) To optimize radiation protection and safety

• C) To standardize all medical procedures

• D) To improve patient comfort

2) Who is responsible for ensuring that DRLs are established at the national or regional level?

• A) Local hospitals

• B) The government

• C) Individual medical practitioners

• D) International organizations

3) What should a nuclear medicine facility do if its typical dose exceeds the DRL for a particular procedure?

• A) Stop performing the procedure

• B) Document the reasons and consider revising protocols

• C) Report it to the patient immediately

• D) Ignore it as long as the image quality is good

4) What is the role of dose constraints in nuclear medicine?

• A) To replace DRLs entirely

• B) To legally enforce maximum doses for all procedures

• C) To guide the optimization of radiation protection, keeping doses as low as reasonably achievable

• D) To ensure the highest possible image quality

5) What is a typical dose constraint for an adult carer or comforter in nuclear medicine?

• A) 1 mSv per episode

• B) 5 mSv per episode

• C) 10 mSv per episode

• D) 20 mSv per episode

6) What should be done if a child is involved as a carer or comforter during a nuclear medicine procedure?

• A) They should be excluded from the procedure

• B) Their exposure should be limited to 1 mSv per episode

• C) They should be given the same dose constraint as an adult

• D) They should only be allowed if no other carer is available

7) Which of the following best describes a Diagnostic Reference Level (DRL)?

• A) A strict legal limit on radiation dose

• B) A tool to identify unusually high or low dose levels for standard procedures

• C) A recommended maximum dose for all procedures

• D) A guideline that applies only to therapeutic nuclear medicine procedures