Electrons are positioned
2. Mass number is defined as
3. Atomic number is defined as
4. For the atom to be electrically neutral, the number of
5. Isotopes are nuclei with
a. SameAandZ
b. Same Z, different A
c. Same A, different Z
d. Z greater than A
6. The number of protons in a nucleus is expressed by the symbol
a. A
b. Z
c. X
d. M
7. Which of the following is a nucleon?
8. In the symbol 131 I, the number 131 represents
a. The mass number
b. The number of electrons
c. The atomic number
d. Avagadro’s number
9. Gamma-ray photons have
10. In spontaneous fission
11. In Alpha Decay
12. Electron emission involves the ejection of
13. In the photoelectric effect
14. 1 Bq is equal to
The half life of 99m-Tc is 6 hours. After how much time will one eighth of the radioactivity in a sample remain?
16. The half-life is
17. A cyclotron is used to
18. The ideal gamma-ray energy for nuclear medicine imaging is between
19. The solution eluted from a 99m-Tc generator is
20. The characteristics of radioisotope useful for diagnostic nuclear medicine include
21. A scintillation crystal widely used for gamma-ray detection is
22. A dynode in a photomultiplier tube
23. What the patient should avoid before thyroidal scintigraphy?
24. What kind of radiopharmaceutical uptake have in “hot” nodule of thyroid gland?
25. What are elevated in serum of patients with Graves’ disease?
26. What are the advantages of wholebody scan in patient with metastatic disease?
27. What are changed in serum of patients with hypothyroidism?
28. For which nuclear medicine studies are used labelled with 99m-Tc red blood cells?
29. What is the first indication to perform perfusion lung scintigraphy?
30. What kind of radiopharmaceutical uptake have bone metastases?
40. A dynode in a photomultipler tube
a. Emits a number of secondary electrons per primary electron absorbed
b. Converts light photons to electrons
c. Is used as a power supply
d. Converts gamma-ray photons to ligh
41. The Becquerel is defined as the amount of radioactive substance that given rise to a desintegration rate of
a. 3.7 desintegrations per minute
b. 1 desintegration per second
c. 37,000 desintegrations per minute
d. 1 desintegration per minute
42. What is the activity unit in SI?
43. The half-life is
46. What ionizing radiation detects the apparatus used for in vivo diagnostics in nuclear medicine?
47. What are radiopharmaceuticals?
48. Ways of application of radiopharmaceutical to nuclear medicine?
51. Thyroid cysts are visualised on a scintigraphic examination such as
53. What are changed in serum of patients with hypothyroidism?
54. Isotope nephrogram is the time / activity curve with the following number of phases
55. Which phase is missing from a hydronephrotic type of isotope nephrogram curve?
57. What are the advantages of whole body scan in patient with metastatic disease?
59. 99mT-pertechnetate after intravenous administration does not accumulate in
Which of the following definitions corresponds to the term nuclide?
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