SAMPLE EXAM QUESTIONS FROM
NMTCB WEBSITE WITH 100% CORRECT
SOLUTIONS
According to NRC criteria, which of the following is a misadministration?
a. Infiltration of an attempted intravenous injection
b. Administration of 10 mCi I-131 instead of the prescribed 9 mCi
c. Administration of 20 mCi Tc-99m pertechnetate instead of the prescribed 10 mCi
d. Administration of 15 mCi I-131 sodium iodide intravenously instead of orally as
prescribed.
e. Administration of 5 mCi Tc-99m sulfur colloid to the wrong patient. - ANSWER-d.
Administration of 15 mCi I-131 sodium iodide intravenously instead of orally as
prescribed.
Chromatography testing of technetium radiopharmaceuticals is done to check for:
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 contour 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
Full width at half maximum (FWHM) is often used as a measure of:
a. Uniformity
b. Sensitivity
c. Intensity
d. Resolution
, e. Dead time - ANSWER-d. Resolution
According to NRC, an unrestricted area is one in which a person would receive a
radiation dose of less than:
a. 2 mrem/hr
b. 5 mrem/hr
c. 10 mrem/hr
d. 20 mrem/hr
e. 50 mrem/hr - ANSWER-a. 2 mrem/hr
The dose rate during preparation of a radiopharmaceutical is 1.66 mrem/hr. With this
rate reduced by 2 HVLs, how many hours would it take a worker to accumulate 10
mrems?
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 a 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
Uncorrected flood field nonuniformities cause ____________ artifacts in tomographic
reconstruction.
a. Irregular
b. Dropout
c. Circular
d. Undulating
e. Linear - ANSWER-Circular
How many 16-bit words of memory are required for a 64 x 64 byte mode image?
a. 2,048
b. 4,096
c. 16,384
d. 32,768
e. 65,535 - ANSWER-a. 2,048
Areas of prolonged retention of Xe-133 in the lungs are associated with:
a. Reduced trapping in the lung
b. Obstructive lung disease
NMTCB WEBSITE WITH 100% CORRECT
SOLUTIONS
According to NRC criteria, which of the following is a misadministration?
a. Infiltration of an attempted intravenous injection
b. Administration of 10 mCi I-131 instead of the prescribed 9 mCi
c. Administration of 20 mCi Tc-99m pertechnetate instead of the prescribed 10 mCi
d. Administration of 15 mCi I-131 sodium iodide intravenously instead of orally as
prescribed.
e. Administration of 5 mCi Tc-99m sulfur colloid to the wrong patient. - ANSWER-d.
Administration of 15 mCi I-131 sodium iodide intravenously instead of orally as
prescribed.
Chromatography testing of technetium radiopharmaceuticals is done to check for:
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 contour 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
Full width at half maximum (FWHM) is often used as a measure of:
a. Uniformity
b. Sensitivity
c. Intensity
d. Resolution
, e. Dead time - ANSWER-d. Resolution
According to NRC, an unrestricted area is one in which a person would receive a
radiation dose of less than:
a. 2 mrem/hr
b. 5 mrem/hr
c. 10 mrem/hr
d. 20 mrem/hr
e. 50 mrem/hr - ANSWER-a. 2 mrem/hr
The dose rate during preparation of a radiopharmaceutical is 1.66 mrem/hr. With this
rate reduced by 2 HVLs, how many hours would it take a worker to accumulate 10
mrems?
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 a 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
Uncorrected flood field nonuniformities cause ____________ artifacts in tomographic
reconstruction.
a. Irregular
b. Dropout
c. Circular
d. Undulating
e. Linear - ANSWER-Circular
How many 16-bit words of memory are required for a 64 x 64 byte mode image?
a. 2,048
b. 4,096
c. 16,384
d. 32,768
e. 65,535 - ANSWER-a. 2,048
Areas of prolonged retention of Xe-133 in the lungs are associated with:
a. Reduced trapping in the lung
b. Obstructive lung disease
