Radition Quiz

Radiation Safety for Nuclear Medicine

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1. Radiation dose is defined as

A. energy deposited in a unit of mass

B. energy released in a unit of mass

C. energy transferred through a unit of mass

D. mass divided by energy

2. What is the annual whole body dose limit?

A. 50 mrem

B. 5 rem

C. 5 mrem

D. 50 rem

3. ALARA is an acronym that stands for

A. As Low As Reasonably Acceptable

B. As Low As Reasonably Attainable

C. As Low As Reasonably Amenable

D. As Low As Reasonably Achievable

4. All of the following would be effective shields for Tc99m EXCEPT

A. Lead bricks

B. Your coworker

C. Plastic

D. Syringe shields

5. The exposure rate from a Cs-137 source is 2 mR/hr at 3 meters. What is the exposure rate at 12 meters?

A. 4 mR/hr

B. 2 mR/hr

C. 0.5 mR/hr

D. 0.125 mR/hr

6. A consideration in selecting appropriate shielding material is

A. the type of radiation

B. the energy of the radiation

C. the activity

D. all of the above

7. Regulations concerning Medical Use of Byproduct Material is covered in

A. 10 CFR 19

B. 10 CFR 20

C. 10 CFR 30

D. 10 CFR 35

8. Written directive procedures should verify

A. correct dose

B. correct isotope

C. correct route

D. all of the above

9. When checking in a radioactive package, you notice the contents are wet. The next step is to

A. call the RSO

B. take a wipe sample to determine if the leaking substance is radioactive

C. call the radiopharmacy

D. notify the NRC

10. You spill a drop of Tc99m on the counter top. Your first action is to

A. clean the spill

B. call the RSO

C. notify others in the area of the contamination

D. panic

11. Safe Use of Radioactive Materials includes all of the following EXCEPT

A. leaving the hot lab door open

B. using syringe shields

C. wearing PPE

D. monitoring for contamination

12. The least penetrating radiation is

A. alpha particles

B. beta particles

C. X-rays

D. gamma rays

13. True or False. Non-stochastic effects are probabilistic.

A. True

B. False

14. The exposure rate at 1 meter for a package is 1.2 mR/hr. This package would be labeled _______.

A. Excepted Package, Limited Quantity

B. White I

C. Yellow II

D. Yellow III

15. According to NCRP Report 160, what percentage of effective dose is attributed to nuclear medicine?

A. 1%

B. 7%

C. 12%

D. 24%

16. Who is attributed for the discovery/synthesis of TC-99m?

A. Marie and Pierre Curie

B. Henri Becquerel

C. Emilio Segre and Glenn Seaborg

D. James Watson and Francis Crick

17. Which of the following applies to radiation workers?

A. Any individuals likely to receive more than 100 mrem

B. Should be instructed in general radiation safety

C. Should be advised of their dosimetry results regularly

D. All of the above

18. The following are all example of instrumentation that may be found in a nuclear medicine department except:

A. Dose Calibrator

B. Ion Chambers

C. GM Detectors

D. Neutron Detectors

19. Short lived (T½ < 120 days) radioactive waste should be stored _____________.

A. Until the exposure rate is indistinguishable from background

B. For 1 year

C. For 120 days

D. In an unmarked container

20. Written directives help to ensure the safety of patient administrations by directly stating which information?

A. Correct Dose

B. Correct Patient Identity

C. Correct isotope and route of administration

D. All of the above

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Radition Quiz

Radition Quiz

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