NMTCB Exam Review V1
1. According to the NRC, how often must survey meters be calibrated?: annually or after
repair
2. Heating is required for which commonly used Tc99m labeled radiopharmaceuticals?:
filtered sulfur colloid, sestamibi, sulfur colloid, mertiatide
3. 1 mCi = MBq: 37 MBq
4. What is the half-life of In-111?: 67.2 hours
5. What is the half-life of Tl-201?: 73.1 hours
6. What is the half-life of Gallium-67?: 78.3 hours
7. What is the half-life of Gallium-68?: 68 minutes
8. According to the NRC, what is the annual occupational dose limit to anyorgan or tissue,
other than the eye?: 50 Rem (500 mSv)
9. When you are labeling RBCs with Tc99m using the in vivo method,
when should you give stannous pyrophosphate?: 15-30 minutes before Tc99mpertechnetate
10. Radioxenon can only be administered in imaging rooms that can be nega- tively or
positively pressurized?: negatively
11. According to the NRC, written instructions must be provided to a patient who has
received radionuclide therapy when another individual may receive an exposure greater than
what?: 0.1 Rem (1 mSv)
12. Full width at half maximum is described as?: the width of the photopeak (in keV) at one
half of the max/peak counts
13. What filter permits high frequencies to pass through while altering lowerfrequencies,
increasing resolution and suppressing star artifact created dur-ing FBP?: high-pass filter
14. What filter is used to eliminate statistical noise, smoothing the image?Examples include
Butterworth, Hanning, or Parzen: low-pass filter
15. How can you calculate the R to R interval heart beat?: 60 sec/bpm
16. How can you calculate pixel size?: distance between sources/# of pixelsbetween activity
profile peaks
17. How can you calculate percent error, where N is the minimum countsneeded to assure a
maximum given % error?: 2(100%)/sqrt(N)
18. What condition is three/four phase bone imaging important for?: inflamma-tory conditions
like osteomyelitis
19. What tracers can be used for skeletal bone imaging?: Tc99m MDP(medronate) or Tc99m
HDP (oxidronate)
, 20. What tracer is used for equilibrium ventricular function studies? This trac-er needs to
remain in the blood pool.: Tc99m pertechnetate or Tc99m albumin (preferred, but not
available in the US)
21. In a LeVeen shunt patency test, where is the tracer administered?: peri-toneal cavity
22. Why should you image the injection site in a renal study where you arecalculating
Effective Renal Plasma Flow (ERPF)?: to r/o tracer infiltration
23. What tracers can be used for a ventriculoperitoneal shunt patency study?-
: Tc99m pertechnetate or In-111 DTPA
24. What tracers can be used for a GI bleed study?: Tc99m sulfur colloid orTc99m labeled
RBCs
25. What radiopharmaceutical is used to image acute DVT in lower extremities?-
: Tc99m MAA
26. Where is Tc99m sestamibi excreted from?: Hepatobiliary system
27. On liver/spleen images, bone marrow uptake is present. What does thisindicate?: severe
liver dysfunction
28. If there is an obstruction in this part of the hepatobiliary system, the tracerwill be unable
to enter the gallbladder.: cystic duct
29. How long post-administration should imaging begin for Meckel's Diverticu-lum?:
immediately
30. In renal imaging, which radiotracer should be used when trying to determineGlomerular
Filtration Rate (GFR)?: Tc99m DTPA (pentetate)
31. What radiotracers can be used for direct radionuclide cystography?: Tc99mpertechnetate
or Tc99m sulfur colloid
32. What are the 3 phases of tracer movement in a normal cerebral flow study?-
: arterial phase, capillary phase, venous phase
33. In the arterial phase of a cerebral flow study, normal images will showactivity where?:
carotid and anterior cerebral arteries
34. In the venous phase of a cerebral flow study, normal images will showactivity where?:
superior sagittal sinus
35. What are the non-BBB penetrating radiopharmaceuticals used for braindeath imaging?:
Tc99m DTPA or pertechnetate
36. What are the BBB penetrating radiopharmaceuticals used for brain deathimaging?:
Tc99m HMPAO (ceretec) or Tc99m ECD (Neurolite)
37. What is used for radionuclide therapy to relieve bone pain from skeletalmets?: Sr-89
chloride or Sm-153 lexidronam
1. According to the NRC, how often must survey meters be calibrated?: annually or after
repair
2. Heating is required for which commonly used Tc99m labeled radiopharmaceuticals?:
filtered sulfur colloid, sestamibi, sulfur colloid, mertiatide
3. 1 mCi = MBq: 37 MBq
4. What is the half-life of In-111?: 67.2 hours
5. What is the half-life of Tl-201?: 73.1 hours
6. What is the half-life of Gallium-67?: 78.3 hours
7. What is the half-life of Gallium-68?: 68 minutes
8. According to the NRC, what is the annual occupational dose limit to anyorgan or tissue,
other than the eye?: 50 Rem (500 mSv)
9. When you are labeling RBCs with Tc99m using the in vivo method,
when should you give stannous pyrophosphate?: 15-30 minutes before Tc99mpertechnetate
10. Radioxenon can only be administered in imaging rooms that can be nega- tively or
positively pressurized?: negatively
11. According to the NRC, written instructions must be provided to a patient who has
received radionuclide therapy when another individual may receive an exposure greater than
what?: 0.1 Rem (1 mSv)
12. Full width at half maximum is described as?: the width of the photopeak (in keV) at one
half of the max/peak counts
13. What filter permits high frequencies to pass through while altering lowerfrequencies,
increasing resolution and suppressing star artifact created dur-ing FBP?: high-pass filter
14. What filter is used to eliminate statistical noise, smoothing the image?Examples include
Butterworth, Hanning, or Parzen: low-pass filter
15. How can you calculate the R to R interval heart beat?: 60 sec/bpm
16. How can you calculate pixel size?: distance between sources/# of pixelsbetween activity
profile peaks
17. How can you calculate percent error, where N is the minimum countsneeded to assure a
maximum given % error?: 2(100%)/sqrt(N)
18. What condition is three/four phase bone imaging important for?: inflamma-tory conditions
like osteomyelitis
19. What tracers can be used for skeletal bone imaging?: Tc99m MDP(medronate) or Tc99m
HDP (oxidronate)
, 20. What tracer is used for equilibrium ventricular function studies? This trac-er needs to
remain in the blood pool.: Tc99m pertechnetate or Tc99m albumin (preferred, but not
available in the US)
21. In a LeVeen shunt patency test, where is the tracer administered?: peri-toneal cavity
22. Why should you image the injection site in a renal study where you arecalculating
Effective Renal Plasma Flow (ERPF)?: to r/o tracer infiltration
23. What tracers can be used for a ventriculoperitoneal shunt patency study?-
: Tc99m pertechnetate or In-111 DTPA
24. What tracers can be used for a GI bleed study?: Tc99m sulfur colloid orTc99m labeled
RBCs
25. What radiopharmaceutical is used to image acute DVT in lower extremities?-
: Tc99m MAA
26. Where is Tc99m sestamibi excreted from?: Hepatobiliary system
27. On liver/spleen images, bone marrow uptake is present. What does thisindicate?: severe
liver dysfunction
28. If there is an obstruction in this part of the hepatobiliary system, the tracerwill be unable
to enter the gallbladder.: cystic duct
29. How long post-administration should imaging begin for Meckel's Diverticu-lum?:
immediately
30. In renal imaging, which radiotracer should be used when trying to determineGlomerular
Filtration Rate (GFR)?: Tc99m DTPA (pentetate)
31. What radiotracers can be used for direct radionuclide cystography?: Tc99mpertechnetate
or Tc99m sulfur colloid
32. What are the 3 phases of tracer movement in a normal cerebral flow study?-
: arterial phase, capillary phase, venous phase
33. In the arterial phase of a cerebral flow study, normal images will showactivity where?:
carotid and anterior cerebral arteries
34. In the venous phase of a cerebral flow study, normal images will showactivity where?:
superior sagittal sinus
35. What are the non-BBB penetrating radiopharmaceuticals used for braindeath imaging?:
Tc99m DTPA or pertechnetate
36. What are the BBB penetrating radiopharmaceuticals used for brain deathimaging?:
Tc99m HMPAO (ceretec) or Tc99m ECD (Neurolite)
37. What is used for radionuclide therapy to relieve bone pain from skeletalmets?: Sr-89
chloride or Sm-153 lexidronam
