NMTCB Exam Review Questions with
Correct Answers ( 100% Guaranteed
Pass)
The radionuclides emitting b particles should be stored in containers of low Z material to
prevent: - Answer-Bremsstrahlung radiation (aka breaking radiation)
One of two or more different nuclides having the same mass number is called: -
Answer-isobar
Compton scatter from the patient overlaps into the energy levels located: - Answer-at
low energy side of the energy window
The product of the physical half-life and the decay constant is equal to: - Answer-0.693
An atom with an unstable nucleus is called a: - Answer-Radionuclide
When comparing the mass of an atom to the sum of the individual pieces of the atom,
there will always be: - Answer-less mass than expected
The minimum amount of energy needed to overcome the forces holding the atom
together is called: - Answer-Binding energy
if a 15mCi of F-18 dose is needed for PET scan at 1300, how much should be prepared
at 1000? - Answer-46.6mCi
A bone scan is scheduled to be performed with 25mCi of Tc-99m MDP at 1230. How
much Tc-99m MDP should be placed in the syringe at 0800 on the same day? -
Answer-42mCi
If the Tc-99m sulfur colloid calibrated activity is 6mCi at 0800, how much activity will be
remaining 90min later? - Answer-5.0mCi
The major types of radiation listed by decreasing mass are: - Answer-a, b, g
The distance that the positron from its origin to the point of the annihilation is called: -
Answer-Positron range
850 milligrams (mGy) are equal to: - Answer-8,500,000rads
During positron decay: - Answer-a proton is converted into a neutron
,A dose calibrator is used to assay the amount of a radioactivity in a sample before it is
administered to a patient. All radiation leaving the source placed in the dose calibrator is
detected EXCEPT radiation directed toward: - Answer-the hole at the top
580 Microcuries (uCi) is equal to: - Answer-0.00058Ci
The survey meter, also known as the Geiger-Mueller detector or Geiger counter is a
radiation detector filled with: - Answer-Gas
If a vial containing Tl-201 is found to have an activity of 10.0 mCi at 8 a.m. on Monday,
how much activity would remain at 10 a.m. on Friday provided no dose was drawn from
this vial (in mCi)? - Answer-3.94
D. is correct
Normalization standardizes count information so that manipulation of data and
comparison of count information from different size regions of interest (ROIs) can be
accomplished. Normalization will prevent the over or underestimation of background
counts based on region size - Answer-3.022 Normalization of nuclear medicine images
allows for:
A. the amount of data acquisition time to be shortened
B. simultaneous acquisitions in the posterior and anterior positions
C. simultaneous acquisitions and processing
D. comparison of information from different size regions of interest
F. is correct.
The computer may be used to evaluate the transit time or esophageal motility in the
proximal, mid, and distal end of the esophagus. - Answer-3.023 In esophageal transit
studies the computer may be used to:
A. generate gastric emptying half-times
B. generate time activity curves for proximal, mid, and distal regions of the esophagus
C. evaluate the amount and distribution of gastric activity
D. demonstrate suspected disorders of esophageal motility
E. all of the above
F. B and D
A. is correct.
The patient should be NPO -8 hours before the exam. ROIs need to include all parts of
the stomach on all images so correction for patient motion is important. The length of
the exam requires decay correction and the position of the stomach requires correction
for the depth and attenuation of the radiotracer in the body - Answer-3.024 Which of the
following considerations is NOT required for gastric emptying studies acquired and
processed by computer?
A. premeditation with antacids
B. correction for radioactive decay
C. geometric correction for depth and position of stomach
D. patient motion correction
, E. B and C
C. is correct.
The gallbladder ejection fraction (GBEF) uses the pre CCK image and the post CCK
images (normalized and background subtracted). Normal values are reported to be at
least 35% following CCK. - Answer-3.025 Gallbladder ejection fractions following the
administration of cholecystokinin are calculated by the formula
A. area under the gallbladder/ maximum curve height X 100
B. preCCK cts-bkgd/ postCCK-bkg X 100
C. preCCKcts -bkg-postCCKcts-bkg) / preCCKcts(-bkg)
D.preCCKcts-bkg-postCCKcts-bkg/ total livercts -bkgd X 100
B. is correct.
Sixteen frames are the minimum number of frames to be acquired for an accurate
assessment of cardiac ejection fraction - Answer-3.026 Accurate assessment of cardiac
ejection fractions can be obtained with a minimum of:
A. 8 frames
B. 16 frames
C. 20 frames
D. 32 frames
A. is correct.
There is no appreciable improvement in quantitative value by increasing matrix size.
Although the image quality improves, it is really the count rate/pixel that is of value in
the processing of a gated heart (or radionuclide ventriculogram) study. - Answer-3.027
In the radionuclide ventriculogram, the word image matrix which provides the best
compromise between image resolution and memory required to store images is:
A. 64 x 64
B. 128 x 128
C. 256 x 256
D. none of the above
C. is correct
A buffer is a temporary storage in computer memory - Answer-3.028 The best
description of a buffer is:
A. a filter for heart rate variations
B. a closed loop movie
C. a temporary storage for acquired data
D. a serial acquisition mode
3.029 List-mode acquisitions are:
A. a filter for heart rate variations
B. a closed loop movie
C. a temporary storage for acquired data
D. is correct.
Correct Answers ( 100% Guaranteed
Pass)
The radionuclides emitting b particles should be stored in containers of low Z material to
prevent: - Answer-Bremsstrahlung radiation (aka breaking radiation)
One of two or more different nuclides having the same mass number is called: -
Answer-isobar
Compton scatter from the patient overlaps into the energy levels located: - Answer-at
low energy side of the energy window
The product of the physical half-life and the decay constant is equal to: - Answer-0.693
An atom with an unstable nucleus is called a: - Answer-Radionuclide
When comparing the mass of an atom to the sum of the individual pieces of the atom,
there will always be: - Answer-less mass than expected
The minimum amount of energy needed to overcome the forces holding the atom
together is called: - Answer-Binding energy
if a 15mCi of F-18 dose is needed for PET scan at 1300, how much should be prepared
at 1000? - Answer-46.6mCi
A bone scan is scheduled to be performed with 25mCi of Tc-99m MDP at 1230. How
much Tc-99m MDP should be placed in the syringe at 0800 on the same day? -
Answer-42mCi
If the Tc-99m sulfur colloid calibrated activity is 6mCi at 0800, how much activity will be
remaining 90min later? - Answer-5.0mCi
The major types of radiation listed by decreasing mass are: - Answer-a, b, g
The distance that the positron from its origin to the point of the annihilation is called: -
Answer-Positron range
850 milligrams (mGy) are equal to: - Answer-8,500,000rads
During positron decay: - Answer-a proton is converted into a neutron
,A dose calibrator is used to assay the amount of a radioactivity in a sample before it is
administered to a patient. All radiation leaving the source placed in the dose calibrator is
detected EXCEPT radiation directed toward: - Answer-the hole at the top
580 Microcuries (uCi) is equal to: - Answer-0.00058Ci
The survey meter, also known as the Geiger-Mueller detector or Geiger counter is a
radiation detector filled with: - Answer-Gas
If a vial containing Tl-201 is found to have an activity of 10.0 mCi at 8 a.m. on Monday,
how much activity would remain at 10 a.m. on Friday provided no dose was drawn from
this vial (in mCi)? - Answer-3.94
D. is correct
Normalization standardizes count information so that manipulation of data and
comparison of count information from different size regions of interest (ROIs) can be
accomplished. Normalization will prevent the over or underestimation of background
counts based on region size - Answer-3.022 Normalization of nuclear medicine images
allows for:
A. the amount of data acquisition time to be shortened
B. simultaneous acquisitions in the posterior and anterior positions
C. simultaneous acquisitions and processing
D. comparison of information from different size regions of interest
F. is correct.
The computer may be used to evaluate the transit time or esophageal motility in the
proximal, mid, and distal end of the esophagus. - Answer-3.023 In esophageal transit
studies the computer may be used to:
A. generate gastric emptying half-times
B. generate time activity curves for proximal, mid, and distal regions of the esophagus
C. evaluate the amount and distribution of gastric activity
D. demonstrate suspected disorders of esophageal motility
E. all of the above
F. B and D
A. is correct.
The patient should be NPO -8 hours before the exam. ROIs need to include all parts of
the stomach on all images so correction for patient motion is important. The length of
the exam requires decay correction and the position of the stomach requires correction
for the depth and attenuation of the radiotracer in the body - Answer-3.024 Which of the
following considerations is NOT required for gastric emptying studies acquired and
processed by computer?
A. premeditation with antacids
B. correction for radioactive decay
C. geometric correction for depth and position of stomach
D. patient motion correction
, E. B and C
C. is correct.
The gallbladder ejection fraction (GBEF) uses the pre CCK image and the post CCK
images (normalized and background subtracted). Normal values are reported to be at
least 35% following CCK. - Answer-3.025 Gallbladder ejection fractions following the
administration of cholecystokinin are calculated by the formula
A. area under the gallbladder/ maximum curve height X 100
B. preCCK cts-bkgd/ postCCK-bkg X 100
C. preCCKcts -bkg-postCCKcts-bkg) / preCCKcts(-bkg)
D.preCCKcts-bkg-postCCKcts-bkg/ total livercts -bkgd X 100
B. is correct.
Sixteen frames are the minimum number of frames to be acquired for an accurate
assessment of cardiac ejection fraction - Answer-3.026 Accurate assessment of cardiac
ejection fractions can be obtained with a minimum of:
A. 8 frames
B. 16 frames
C. 20 frames
D. 32 frames
A. is correct.
There is no appreciable improvement in quantitative value by increasing matrix size.
Although the image quality improves, it is really the count rate/pixel that is of value in
the processing of a gated heart (or radionuclide ventriculogram) study. - Answer-3.027
In the radionuclide ventriculogram, the word image matrix which provides the best
compromise between image resolution and memory required to store images is:
A. 64 x 64
B. 128 x 128
C. 256 x 256
D. none of the above
C. is correct
A buffer is a temporary storage in computer memory - Answer-3.028 The best
description of a buffer is:
A. a filter for heart rate variations
B. a closed loop movie
C. a temporary storage for acquired data
D. a serial acquisition mode
3.029 List-mode acquisitions are:
A. a filter for heart rate variations
B. a closed loop movie
C. a temporary storage for acquired data
D. is correct.
