Radiation Safety in Nuclear Medicine

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Questions and Answers

What is the typical rate of decay and urinary excretion?

  • 0.5 mR/hr (correct)
  • 5.0 mR/hr
  • 2.5 mR/hr
  • 1.5 mR/hr

What is the primary benefit of having thorough knowledge of the task to be performed in radiation safety?

  • Eliminating the need for shielding
  • Increasing the exposure rates
  • Reducing the time spent near the radiation source (correct)
  • Improving the quality of the image

Why should unshielded radiation sources never be manipulated by hand?

  • To minimize the exposure rates (correct)
  • To improve the quality of the image
  • To reduce the cost of radiation safety equipment
  • To increase the distance between the source and the hand

What is the primary purpose of using tongs or other handling devices in radiation safety?

<p>To increase the distance between the source and the hand (C)</p> Signup and view all the answers

How much does the use of a syringe shield reduce hand exposure from Tc-99m?

<p>100 fold (C)</p> Signup and view all the answers

What is the limited role of a lead apron in nuclear medicine?

<p>Diagnostic radiology (C)</p> Signup and view all the answers

What is the most important component of radiation safety in Nuclear Medicine?

<p>Knowledge (D)</p> Signup and view all the answers

What is the primary responsibility of radiation workers in a Nuclear Medicine department?

<p>All of the above (D)</p> Signup and view all the answers

What is the purpose of the design of a Nuclear Medicine department?

<p>To ensure safety, efficiency, and economy (C)</p> Signup and view all the answers

What is the typical exposure rate of a 'Warm Area' in a Nuclear Medicine department?

<p>Millicuries level (B)</p> Signup and view all the answers

What is the concept applied to minimize exposure to radiation in Nuclear Medicine procedures?

<p>ALARA (C)</p> Signup and view all the answers

What is the exposure rate at 2 hours after the injection of 740 MBq (20 mCi) Tc99m MDP for a bone scan?

<p>1 mR/hr (A)</p> Signup and view all the answers

What is the best method for decontamination in Nuclear Medicine?

<p>Washing the area with soap and warm water (D)</p> Signup and view all the answers

What is the primary reason for personnel to wash their hands after handling radioactivity?

<p>To prevent internal contamination by ingestion (C)</p> Signup and view all the answers

What is the purpose of surveying personnel and work surfaces for contamination in Nuclear Medicine?

<p>To prevent the spread of radioactive material (C)</p> Signup and view all the answers

What is the primary purpose of proper labeling of syringes in Nuclear Medicine?

<p>To prevent misadministration of radiopharmaceuticals (D)</p> Signup and view all the answers

What is the recommended protocol for patients who are breast feeding and undergoing radionuclide therapy?

<p>Breast feeding should be discontinued temporarily (D)</p> Signup and view all the answers

At what level of radiation is an area considered contaminated in Nuclear Medicine?

<p>Twice the background level (B)</p> Signup and view all the answers

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