1. The most commonly used radioisotope in nuclear medicine for bone scanning is:
a) Technetium-99m
b) Iodine-131
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m
2. Which radioisotope is primarily used for thyroid imaging and treatment?
a) Iodine-123
b) Technetium-99m
c) Gallium-67
d) Xenon-133
Answer: a) Iodine-123
3. The radioisotope used for myocardial perfusion imaging is:
a) Technetium-99m Sestamibi
b) Iodine-131
c) Fluorodeoxyglucose
d) Thallium-201
Answer: a) Technetium-99m Sestamibi
4. Which radioisotope is used in PET imaging to assess metabolic activity?
a) Fluorodeoxyglucose (FDG)
b) Technetium-99m
c) Iodine-131
d) Gallium-67
Answer: a) Fluorodeoxyglucose (FDG)
5. The radioisotope used for lung ventilation studies is:
a) Xenon-133
b) Technetium-99m
c) Iodine-123
d) Fluorodeoxyglucose
Answer: a) Xenon-133
6. The radioisotope used for evaluating bone metabolism is:
a) Technetium-99m MDP
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m MDP
7. For assessing cardiac function, which radioisotope is commonly used?
a) Thallium-201
b) Iodine-131
c) Technetium-99m
d) Fluorodeoxyglucose
Answer: a) Thallium-201
8. The radioisotope used for liver imaging is:
a) Technetium-99m sulfur colloid
b) Iodine-131
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m sulfur colloid
9. Which radioisotope is used for brain imaging to evaluate cerebral blood flow?
a) Technetium-99m HMPAO
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m HMPAO
10. The radioisotope used for detecting infections and tumors is:
a) Gallium-67
b) Technetium-99m
c) Iodine-123
d) Fluorodeoxyglucose
Answer: a) Gallium-67
11. Which radioisotope is used for thyroid ablation therapy?
a) Iodine-131
b) Technetium-99m
c) Gallium-67
d) Xenon-133
Answer: a) Iodine-131
12. The radioisotope used in a gastric emptying study is:
a) Technetium-99m sulfur colloid
b) Iodine-123
c) Fluorodeoxyglucose
d) Gallium-67
Answer: a) Technetium-99m sulfur colloid
13. For evaluating renal function, which radioisotope is used?
a) Technetium-99m MAG3
b) Iodine-131
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m MAG3
14. The radioisotope used for adrenal imaging is:
a) Technetium-99m MIBG
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m MIBG
15. Which radioisotope is used for assessing bone marrow disorders?
a) Technetium-99m
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m
16. The radioisotope used for lymphoscintigraphy is:
a) Technetium-99m sulfur colloid
b) Iodine-131
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m sulfur colloid
17. The radioisotope used for evaluating pulmonary embolism is:
a) Technetium-99m
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m
18. For evaluating myocardial viability, which radioisotope is commonly used in PET?
a) Fluorodeoxyglucose (FDG)
b) Technetium-99m
c) Iodine-123
d) Gallium-67
Answer: a) Fluorodeoxyglucose (FDG)
19. The radioisotope used in a CSF shunt study is:
a) Technetium-99m DTPA
b) Iodine-131
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m DTPA
20. The radioisotope used in a parathyroid scan is:
a) Technetium-99m Sestamibi
b) Iodine-131
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m Sestamibi
21. Which radioisotope is used for bone density studies?
a) Technetium-99m
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m
22. The radioisotope used for evaluating myocardial stress tests is:
a) Thallium-201
b) Iodine-123
c) Technetium-99m
d) Fluorodeoxyglucose
Answer: a) Thallium-201
23. The radioisotope used for thyroid function tests is:
a) Iodine-123
b) Technetium-99m
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Iodine-123
24. The radioisotope used in a bone scan to detect metastases is:
a) Technetium-99m MDP
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m MDP
25. The radioisotope used in evaluating myocardial perfusion at rest is:
a) Technetium-99m Sestamibi
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m Sestamibi
26. The radioisotope used for hepatic imaging is:
a) Technetium-99m sulfur colloid
b) Iodine-131
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m sulfur colloid
27. For evaluating gastric emptying, which radioisotope is used?
a) Technetium-99m sulfur colloid
b) Iodine-131
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m sulfur colloid
28. The radioisotope used for imaging infection or inflammation is:
a) Gallium-67
b) Technetium-99m
c) Iodine-123
d) Fluorodeoxyglucose
Answer: a) Gallium-67
29. Which radioisotope is used in PET imaging for brain studies?
a) Fluorodeoxyglucose (FDG)
b) Technetium-99m
c) Iodine-123
d) Gallium-67
Answer: a) Fluorodeoxyglucose (FDG)
30. The radioisotope used for adrenal imaging is:
a) Technetium-99m MIBG
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m MIBG
31. The radioisotope used for a shunt study in the brain is:
a) Technetium-99m DTPA
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m DTPA
32. The radioisotope used for imaging the thyroid gland is:
a) Iodine-123
b) Technetium-99m
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Iodine-123
33. For evaluating bone marrow function, the radioisotope used is:
a) Technetium-99m sulfur colloid
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m sulfur colloid
34. The radioisotope used for myocardial stress testing is:
a) Thallium-201
b) Iodine-123
c) Technetium-99m
d) Fluorodeoxyglucose
Answer: a) Thallium-201
35. The radioisotope used for assessing gallbladder function is:
a) Technetium-99m
b) Iodine-131
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m
36. The radioisotope used for evaluating lung ventilation is:
a) Xenon-133
b) Technetium-99m
c) Iodine-123
d) Gallium-67
Answer: a) Xenon-133
37. The radioisotope used for evaluating gastrointestinal bleeding is:
a) Technetium-99m
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m
38. The radioisotope used for assessing renal perfusion is:
a) Technetium-99m MAG3
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m MAG3
39. The radioisotope used for evaluating bone metastases is:
a) Technetium-99m MDP
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m MDP
40. The radioisotope used for evaluating thyroid nodules is:
a) Iodine-123
b) Technetium-99m
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Iodine-123
41. The radioisotope used for detecting infections in the body is:
a) Gallium-67
b) Technetium-99m
c) Iodine-123
d) Fluorodeoxyglucose
Answer: a) Gallium-67
42. The radioisotope used for evaluating brain tumors is:
a) Fluorodeoxyglucose (FDG)
b) Technetium-99m
c) Iodine-123
d) Gallium-67
Answer: a) Fluorodeoxyglucose (FDG)
43. The radioisotope used in the evaluation of the parathyroid glands is:
a) Technetium-99m Sestamibi
b) Iodine-131
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m Sestamibi
44. The radioisotope used for evaluating the gastrointestinal tract is:
a) Technetium-99m sulfur colloid
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m sulfur colloid
45. The radioisotope used in PET scans to measure metabolic activity is:
a) Fluorodeoxyglucose (FDG)
b) Technetium-99m
c) Iodine-123
d) Gallium-67
Answer: a) Fluorodeoxyglucose (FDG)
46. The radioisotope used for evaluating myocardial viability is:
a) Fluorodeoxyglucose (FDG)
b) Technetium-99m
c) Iodine-123
d) Gallium-67
Answer: a) Fluorodeoxyglucose (FDG)
47. The radioisotope used for assessing liver function is:
a) Technetium-99m sulfur colloid
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m sulfur colloid
48. The radioisotope used for detecting bone infections is:
a) Technetium-99m
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: c) Gallium-67
49. The radioisotope used for evaluating cardiac perfusion is:
a) Technetium-99m Sestamibi
b) Iodine-123
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Technetium-99m Sestamibi
50. The radioisotope used for imaging the thyroid gland and detecting hyperthyroidism is:
a) Iodine-123
b) Technetium-99m
c) Gallium-67
d) Fluorodeoxyglucose
Answer: a) Iodine-123
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