VIII.3. Nuclear Medicine: Diagnosis and Therapy (LO 5)

1) What is the primary reason for calibrating sources used in nuclear medicine?

• A) To enhance image quality

• B) To ensure radiation safety

• C) To comply with legal requirements

• D) To improve patient comfort

2) Which of the following situations requires the calibration of medical exposure sources?

• A) After every patient scan

• B) After any maintenance that could affect dosimetry

• C) Every five years

• D) Only when requested by the regulatory body

3) Calibration of unsealed sources in nuclear medicine is primarily concerned with which of the following?

• A) The physical size of the radiopharmaceutical

• B) The activity of the radiopharmaceutical

• C) The color of the radiopharmaceutical

• D) The chemical composition of the radiopharmaceutical

4) What is the main purpose of the standards published by the International Electrotechnical Commission (IEC) regarding dose calibrators?

• A) To standardize patient treatment protocols

• B) To provide guidelines for equipment performance specifications

• C) To ensure the ethical use of nuclear medicine

• D) To outline maintenance procedures for imaging devices

5) The nuclide efficiency ε_Ν = ∑ p_i(E_i) ∙ ε_i(E_i) for a dose calibrator is dependent on which of the following?

• A) The temperature of the ionization chamber

• B) The photon emission probability and photon efficiency

• C) The volume of the ionization chamber

• D) The age of the radiopharmaceutical

6) Which of the following institutions is responsible for maintaining national primary standards for dose calibrators?

• A) National Metrology Institute

• B) International Atomic Energy Agency

• C) World Health Organization

• D) Local hospital regulatory board

7) For how long should records of calibration and dosimetry be maintained, according to the document, if there are no specific regulatory body requirements?

• A) 5 years

• B) 10 years

• C) 15 years

• D) 20 years