Nuclear Medicine Board Review 9.0 Newest 2026
Actual Exam| Complete Questions and Correct Detailed
Answers (Verified Answers) Already Graded A+ (Brand
New!!)
Question 1
According to NRC criteria, which of the following is considered a
misadministration?
A) Infiltration of an intravenous injection of Tc-99m MDP
B) Administration of 10 mCi I-131 instead of the prescribed
9 mCi
C) Administration of Tc-99m pertechnetate to the wrong
patient
D) Administration of 15 mCi I-131 orally instead of
intravenously
1
,Correct Answer: C
Rationale: The NRC defines a medical event (misadministration)
as the administration of a radioactive drug to the wrong patient,
the wrong route, or a dosage that differs significantly from the
prescribed dosage (typically >20% deviation) . Giving a dose
to the entirely wrong patient is a critical error, whereas a 1 mCi
difference (10 vs 9) is often within acceptable pharmacy
variability. Infiltration is a quality issue but not a reportable
medical event unless it leads to significant tissue damage.
Question 2
Chromatography testing of technetium radiopharmaceuticals is
performed to check for:
A) Aluminum contamination
B) Molybdenum breakthrough
C) Radionuclidic purity
D) Radiochemical purity
2
,Correct Answer: D
Rationale: Radiochemical purity refers to the amount of the
desired chemical form of the radionuclide present.
Chromatography (e.g., ITLC or TLC) separates free pertechnetate
(impurity) from labeled product (e.g., MDP or Sulfur Colloid) .
Aluminum contamination (A) is tested via a colorimetric spot test.
Molybdenum breakthrough (B) is tested with a lead
shield/ionization chamber. Radionuclidic purity (C) tests for other
radionuclides (like Mo-99) via gamma spectroscopy.
Question 3
The use of elliptical and/or body contour orbits in SPECT imaging
results in improved:
A) Temporal resolution
B) Spatial resolution
C) Reconstruction times
D) Patient comfort
3
, Correct Answer: B
Rationale: By keeping the detector as close to the patient as
possible throughout the 360-degree rotation, elliptical orbits
minimize the distance between the collimator and the organ of
interest. Spatial resolution in nuclear medicine degrades with
increased distance (due to collimator divergence) . Therefore,
maintaining a close proximity improves the sharpness (spatial
resolution) of the image.
Question 4
In a multiple-gated (MUGA) cardiac blood-pool study with 20
frames/cycle, heart rate 68 bpm, what is the time per frame?
A) 44 milliseconds
B) 56 milliseconds
C) 0.29 seconds
D) 1.5 seconds
4
Actual Exam| Complete Questions and Correct Detailed
Answers (Verified Answers) Already Graded A+ (Brand
New!!)
Question 1
According to NRC criteria, which of the following is considered a
misadministration?
A) Infiltration of an intravenous injection of Tc-99m MDP
B) Administration of 10 mCi I-131 instead of the prescribed
9 mCi
C) Administration of Tc-99m pertechnetate to the wrong
patient
D) Administration of 15 mCi I-131 orally instead of
intravenously
1
,Correct Answer: C
Rationale: The NRC defines a medical event (misadministration)
as the administration of a radioactive drug to the wrong patient,
the wrong route, or a dosage that differs significantly from the
prescribed dosage (typically >20% deviation) . Giving a dose
to the entirely wrong patient is a critical error, whereas a 1 mCi
difference (10 vs 9) is often within acceptable pharmacy
variability. Infiltration is a quality issue but not a reportable
medical event unless it leads to significant tissue damage.
Question 2
Chromatography testing of technetium radiopharmaceuticals is
performed to check for:
A) Aluminum contamination
B) Molybdenum breakthrough
C) Radionuclidic purity
D) Radiochemical purity
2
,Correct Answer: D
Rationale: Radiochemical purity refers to the amount of the
desired chemical form of the radionuclide present.
Chromatography (e.g., ITLC or TLC) separates free pertechnetate
(impurity) from labeled product (e.g., MDP or Sulfur Colloid) .
Aluminum contamination (A) is tested via a colorimetric spot test.
Molybdenum breakthrough (B) is tested with a lead
shield/ionization chamber. Radionuclidic purity (C) tests for other
radionuclides (like Mo-99) via gamma spectroscopy.
Question 3
The use of elliptical and/or body contour orbits in SPECT imaging
results in improved:
A) Temporal resolution
B) Spatial resolution
C) Reconstruction times
D) Patient comfort
3
, Correct Answer: B
Rationale: By keeping the detector as close to the patient as
possible throughout the 360-degree rotation, elliptical orbits
minimize the distance between the collimator and the organ of
interest. Spatial resolution in nuclear medicine degrades with
increased distance (due to collimator divergence) . Therefore,
maintaining a close proximity improves the sharpness (spatial
resolution) of the image.
Question 4
In a multiple-gated (MUGA) cardiac blood-pool study with 20
frames/cycle, heart rate 68 bpm, what is the time per frame?
A) 44 milliseconds
B) 56 milliseconds
C) 0.29 seconds
D) 1.5 seconds
4
