NMTCB SAMPLE EXAM QUESTIONS
AND ANSWERS (100% ACCURATE)
What is being evaluated with chromatography testing of technetium
radiopharmaceuticals
A. Aluminum Contamination
B. Molybdenum Breakthrough
C. Radionuclidic Purity
D. Radiochemical Purity
E. Chemical Purity - ANSWER-D. Radiochemical Purity
The use of elliptical and or body counter orbits in SPECT imaging should result in
improved
A. Temporal Resolution
B. Spatial Resolution
C. Reconstruction Times
D. Acquisition Times
E. Patient Comfort - ANSWER-B. Spatial Resolution
Which of the following variables does not affect spatial resolution in nuclear medicine
imaging systems
A. Physical Design of the collimator
B. Material of which the collimator is constructed
C. Energy of the gamma rays being counted
D. Computer matrix pixel size
E. Byte vs word acquisition mode - ANSWER-E. Byte vs word acquisition mode
According to the NRC, an unrestricted area is one in which a person would receive a
radiation dose of less than
A. 2mRem/hr
B. 5 mRem/hr
C. 10 mRem/hr
D. 20 mRem/hr
E. 50 mRem/hr - ANSWER-B. 2mRem/hr
*The dose rate during predation of a radiopharmaceutical is 1.66 mrem/hr. With this rate
reduced by 2HVLs how many hours would it take a worker to accumulate 10mRems
A. 3
B. 6
C. 12
D. 24
E. 48 - ANSWER-D. 24
, In a euthyroid patient which of the following describes the result of Cytomel (T3)
administration for 8 days prior to radioactive iodine thyroid uptake
A. Elevated protein bound iodine
B. Suppressed "cold" nodules
C. Increased thyroid uptake
D. Decreased thyroid uptake
E. No variation in uptake - ANSWER-D. Decreased thyroid uptake
Full Width at Half Maximum (FWHM) is often used as a measure of
A. Uniformity
B. Sensitivity
C. Intensity
D. Resolution
E. Deadtime - ANSWER-D. Resolution
Uncorrected field flood non uniformities cause ______ artifacts in tomographic
reconstruction
A. Irregular
B. Dropout
C. Circular
D. Undulating
E. Linear - ANSWER-C. Circular
How many 16 bit words of memory are required for a 64 by 64 byte mode image
A. 2048
B. 4096
C. 16,384
D. 32,768
E. 65,535 - ANSWER-A. 2048
What are areas of prolonged retention of Xe133 in the lungs associated with
A. Reduced trapping in the lung
B. Obstructive Lung Disease
C. Pulmonary Embolism
D. Bacterial Pneumonia
E. Septal Penetration - ANSWER-B. Obstructive Lung Disease
A patient is to undergo a multiple gated cardiac blood pool study with the heart cycle
divided into 20 frames. The patient is in normal sinus rhythm and has a heart rate of 68
bpm. The computer should lock in at what time per frame for this study
A. 44 milliseconds
B. 56 milliseconds
C. .29 seconds
D. 1.5seconds
E. 3.4 seconds - ANSWER-A. 44milliseconds
AND ANSWERS (100% ACCURATE)
What is being evaluated with chromatography testing of technetium
radiopharmaceuticals
A. Aluminum Contamination
B. Molybdenum Breakthrough
C. Radionuclidic Purity
D. Radiochemical Purity
E. Chemical Purity - ANSWER-D. Radiochemical Purity
The use of elliptical and or body counter orbits in SPECT imaging should result in
improved
A. Temporal Resolution
B. Spatial Resolution
C. Reconstruction Times
D. Acquisition Times
E. Patient Comfort - ANSWER-B. Spatial Resolution
Which of the following variables does not affect spatial resolution in nuclear medicine
imaging systems
A. Physical Design of the collimator
B. Material of which the collimator is constructed
C. Energy of the gamma rays being counted
D. Computer matrix pixel size
E. Byte vs word acquisition mode - ANSWER-E. Byte vs word acquisition mode
According to the NRC, an unrestricted area is one in which a person would receive a
radiation dose of less than
A. 2mRem/hr
B. 5 mRem/hr
C. 10 mRem/hr
D. 20 mRem/hr
E. 50 mRem/hr - ANSWER-B. 2mRem/hr
*The dose rate during predation of a radiopharmaceutical is 1.66 mrem/hr. With this rate
reduced by 2HVLs how many hours would it take a worker to accumulate 10mRems
A. 3
B. 6
C. 12
D. 24
E. 48 - ANSWER-D. 24
, In a euthyroid patient which of the following describes the result of Cytomel (T3)
administration for 8 days prior to radioactive iodine thyroid uptake
A. Elevated protein bound iodine
B. Suppressed "cold" nodules
C. Increased thyroid uptake
D. Decreased thyroid uptake
E. No variation in uptake - ANSWER-D. Decreased thyroid uptake
Full Width at Half Maximum (FWHM) is often used as a measure of
A. Uniformity
B. Sensitivity
C. Intensity
D. Resolution
E. Deadtime - ANSWER-D. Resolution
Uncorrected field flood non uniformities cause ______ artifacts in tomographic
reconstruction
A. Irregular
B. Dropout
C. Circular
D. Undulating
E. Linear - ANSWER-C. Circular
How many 16 bit words of memory are required for a 64 by 64 byte mode image
A. 2048
B. 4096
C. 16,384
D. 32,768
E. 65,535 - ANSWER-A. 2048
What are areas of prolonged retention of Xe133 in the lungs associated with
A. Reduced trapping in the lung
B. Obstructive Lung Disease
C. Pulmonary Embolism
D. Bacterial Pneumonia
E. Septal Penetration - ANSWER-B. Obstructive Lung Disease
A patient is to undergo a multiple gated cardiac blood pool study with the heart cycle
divided into 20 frames. The patient is in normal sinus rhythm and has a heart rate of 68
bpm. The computer should lock in at what time per frame for this study
A. 44 milliseconds
B. 56 milliseconds
C. .29 seconds
D. 1.5seconds
E. 3.4 seconds - ANSWER-A. 44milliseconds
