Nuclear Medicine Board Review NMTCB
Solved Rated A+
A well counter is set to collect 10,000 counts or to stop after 5 minutes. The counter
stops at 2 minutes. What is the count rate (in cpm)?
a. 2,000
b. 5,000
c. 10,000
d. 20,000
e. 200,000 - ANSWER-B
According to national standards, how often should the activity linearity of a dose
calibrator be measured?
a. Each day of use
b. Weekly
c. Monthly
d. Quarterly
e. Annually - ANSWER-D
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
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
Activity seen in the liver and spleen during a perfusion lung scan would most likely be
due to:
a. Normal physiology and biodistribution
b. Left-to-right cardiac shunt
c. Dissociation and oxidation to free pertechnetate
d. COPD
e. MAA particles smaller than 5 microns - ANSWER-E
Areas of prolonged retention of Xe-133 in the lungs are associated with:
, a. Reduced trapping in the lung
b. Obstructive lung disease
c. Pulmonary emboli
d. Bacterial pneumonia
e. Septal penetration - ANSWER-B
As the sample volume is increased, well counter counting efficiencies are:
a. Reduced
b. Improved
c. Unchanged
d. Increased to a point, then reduced.
e. Unpredictable - ANSWER-A
At what distance is the exposure rate (in mR/hr) indicated by a package's transport
index measured?
a. At the surface
b. At 1 meter from the surface
c. At 3 meters from the surface
d. At 6 meters from the surface
e. Transport index doesn't have anything to do with exposure, all packages, radioactive
or not, have a T.I. - ANSWER-B
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
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
High Radiation Area signs are to be posted in areas where exposures greater than
____________ mrem/hr are measured at 30 cm from the source or from any surface
through which the radiation penetrates:
a. 5
b. 10
c. 50
d. 100
e. 500 - ANSWER-D
How many 16-bit words of memory are required for a 64 x 64 byte mode image?
Solved Rated A+
A well counter is set to collect 10,000 counts or to stop after 5 minutes. The counter
stops at 2 minutes. What is the count rate (in cpm)?
a. 2,000
b. 5,000
c. 10,000
d. 20,000
e. 200,000 - ANSWER-B
According to national standards, how often should the activity linearity of a dose
calibrator be measured?
a. Each day of use
b. Weekly
c. Monthly
d. Quarterly
e. Annually - ANSWER-D
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
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
Activity seen in the liver and spleen during a perfusion lung scan would most likely be
due to:
a. Normal physiology and biodistribution
b. Left-to-right cardiac shunt
c. Dissociation and oxidation to free pertechnetate
d. COPD
e. MAA particles smaller than 5 microns - ANSWER-E
Areas of prolonged retention of Xe-133 in the lungs are associated with:
, a. Reduced trapping in the lung
b. Obstructive lung disease
c. Pulmonary emboli
d. Bacterial pneumonia
e. Septal penetration - ANSWER-B
As the sample volume is increased, well counter counting efficiencies are:
a. Reduced
b. Improved
c. Unchanged
d. Increased to a point, then reduced.
e. Unpredictable - ANSWER-A
At what distance is the exposure rate (in mR/hr) indicated by a package's transport
index measured?
a. At the surface
b. At 1 meter from the surface
c. At 3 meters from the surface
d. At 6 meters from the surface
e. Transport index doesn't have anything to do with exposure, all packages, radioactive
or not, have a T.I. - ANSWER-B
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
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
High Radiation Area signs are to be posted in areas where exposures greater than
____________ mrem/hr are measured at 30 cm from the source or from any surface
through which the radiation penetrates:
a. 5
b. 10
c. 50
d. 100
e. 500 - ANSWER-D
How many 16-bit words of memory are required for a 64 x 64 byte mode image?
