Nuclear Medicine: Exit Exam 105 (New
2026/ 2027 Update) Questions & Answers
{Grade A} 100% Correct (Verified
Solutions)
Which of the following PET myocardial perfusion tracers is described as a model
tracer for flow quantitation?
A. Water O-15
B. Rubidium Rb-82
C. Acetate C-11
D. Ammonia N-13 - correct answer A. Water O-15
Water O-15 uptake is linearly correlated to flow and a single compartment model is
used for flow quantitation.
A gated equilibrium ventricular function study can be performed with which of the
following 99mTc-labeled radiopharmaceuticals?
A. Pentetate
B. Medronate
C. Pyrophosphate
D. Human serum albumin - correct answer D. Human serum albumin
,Gated equilibrium blood pool method is also referred to as multiple gated acquisition
or MUGA. Human serum albumin (HAS) labeled with 99mTc is another intravascular
tracer that has been used as a blood pool agent.
Which of the following personnel monitors would be appropriate for use when
monitors are changed at 3-month intervals?
A. Film badge
B. TLD
C. OSL
D. TLD or OSL - correct answer D. TLD or OSL
Either a TLD or an OSL can be used, because the accuracy of the reading is not
affected by time. The film in a film badge may begin to fog within this period of time,
which may result in inaccurate exposure readings.
Bilateral, symmetric decreased FDG uptake in the tempo parietal region of the brain is
the prevailing pattern observed in:
A. Pick disease
B. Vascular disease
,C. Alzheimer's disease
D. Dementia with Lewy bodies - correct answer C. Alzheimer's disease
In advanced disease, the frontal lobe hypometabolism is observed, but temporoparietal
abnormalities are always present (classic sign).
Which of the following statements is true regarding the wash-in/wash-out method for
performing xenon ventilation studies?
A. It is not necessary to introduce oxygen or air into the xenon delivery system.
B. The patient rebreathes a mixture of xenon and oxygen during the wash-in phase.
C. The patient can be disconnected from the gas trapping apparatus after the wash-in
phase.
D. This method is not recommended for comatose patients. - correct answer B. The
patient rebreathes a mixture of xenon and oxygen during the wash-in phase.
In the wash-in/ wash-out method, the patient breathes a mixture of xenon and oxygen
for several minutes while a wash in image is acquired. Air is then added to the system,
and the xenon that is exhaled is trapped. Serial images are acquired as the xenon
, clears from the lungs. This method requires little cooperation from the patient; no
breath-holding or deep breaths are required. Therefore, the method is well suited for
comatose patients, as well as those on ventilators.
Counting cotton gauze that has been placed in a patient's nose after intrathecal
radiopharmaceutical administration is most useful when which of the following
conditions is suspected?
A. Otorrhea
B. CSF shunt patency
C. Hydrocephalus
D. Rhinorrhea - correct answer D. Rhinorrhea
Because the cribriform plate is the most common site of fracture leading to CSF
rhinorrhea, pledgets are typically placed in the nasal cavity close to the cribriform
plate.
To repair the non-uniformity demonstrated on the intrinsic uniformity image shown
here, the service engineer will need to:
A. Replace the crystal
2026/ 2027 Update) Questions & Answers
{Grade A} 100% Correct (Verified
Solutions)
Which of the following PET myocardial perfusion tracers is described as a model
tracer for flow quantitation?
A. Water O-15
B. Rubidium Rb-82
C. Acetate C-11
D. Ammonia N-13 - correct answer A. Water O-15
Water O-15 uptake is linearly correlated to flow and a single compartment model is
used for flow quantitation.
A gated equilibrium ventricular function study can be performed with which of the
following 99mTc-labeled radiopharmaceuticals?
A. Pentetate
B. Medronate
C. Pyrophosphate
D. Human serum albumin - correct answer D. Human serum albumin
,Gated equilibrium blood pool method is also referred to as multiple gated acquisition
or MUGA. Human serum albumin (HAS) labeled with 99mTc is another intravascular
tracer that has been used as a blood pool agent.
Which of the following personnel monitors would be appropriate for use when
monitors are changed at 3-month intervals?
A. Film badge
B. TLD
C. OSL
D. TLD or OSL - correct answer D. TLD or OSL
Either a TLD or an OSL can be used, because the accuracy of the reading is not
affected by time. The film in a film badge may begin to fog within this period of time,
which may result in inaccurate exposure readings.
Bilateral, symmetric decreased FDG uptake in the tempo parietal region of the brain is
the prevailing pattern observed in:
A. Pick disease
B. Vascular disease
,C. Alzheimer's disease
D. Dementia with Lewy bodies - correct answer C. Alzheimer's disease
In advanced disease, the frontal lobe hypometabolism is observed, but temporoparietal
abnormalities are always present (classic sign).
Which of the following statements is true regarding the wash-in/wash-out method for
performing xenon ventilation studies?
A. It is not necessary to introduce oxygen or air into the xenon delivery system.
B. The patient rebreathes a mixture of xenon and oxygen during the wash-in phase.
C. The patient can be disconnected from the gas trapping apparatus after the wash-in
phase.
D. This method is not recommended for comatose patients. - correct answer B. The
patient rebreathes a mixture of xenon and oxygen during the wash-in phase.
In the wash-in/ wash-out method, the patient breathes a mixture of xenon and oxygen
for several minutes while a wash in image is acquired. Air is then added to the system,
and the xenon that is exhaled is trapped. Serial images are acquired as the xenon
, clears from the lungs. This method requires little cooperation from the patient; no
breath-holding or deep breaths are required. Therefore, the method is well suited for
comatose patients, as well as those on ventilators.
Counting cotton gauze that has been placed in a patient's nose after intrathecal
radiopharmaceutical administration is most useful when which of the following
conditions is suspected?
A. Otorrhea
B. CSF shunt patency
C. Hydrocephalus
D. Rhinorrhea - correct answer D. Rhinorrhea
Because the cribriform plate is the most common site of fracture leading to CSF
rhinorrhea, pledgets are typically placed in the nasal cavity close to the cribriform
plate.
To repair the non-uniformity demonstrated on the intrinsic uniformity image shown
here, the service engineer will need to:
A. Replace the crystal
